Mechanical switches come in a variety of types.
But the most common in the market today are: Reds, Browns, and Blues.
Reds are considered as Linear switches, since they have no click, and due to it, the actuation point is not noticeable at all.
Browns and Blues are clicky/Tactile switches, but Browns are in-between Reds and Blues, because they have the same actuation point as Reds, but still have that clicky/Tactile feedback so you'd know you've register the switch.
Blues are the clickiest of the three, they have a higher actuation point, and due to it, you need to have a considerable amount of force to register the key.
Reds are considered for "gaming", esp for FPS games due to their linearity, but there will be issues when typing, and with that you need to bottom out most of the time to register a key.
Browns are my personal favorite, and it's my daily driver, due to it's lower actuation point than Blues, same as red, but still remain that clicky feeling so I know I pressed a key. It's actually one of the most preferred switches considering it's in-between Red and Blue, and has an even-score in-between them as well, while the latter suffers low from typing for Reds and gaming for Blues.
Blues are considered mostly for typing, and a lot of people with heavy hands use blues if Browns isn't enough for them, or too soft.
As for other types, there are such like Buckling Spring, Topre, and such. Topre is just one of the alternatives to Mechanical Switches, and work the same way AFAIK. Buckling Springs are like Blue switches, they're pretty clicky, and for their name. There are also others like Logitech's Roamer-G switches, their own designed switches, but also works similar to Mechanical Switches, but they are designated for gaming. And also Razer switches(AYYLMAO), also like MS but for gaming...srz though, Razer...
As for other keyboard types, you know how Dome, Scissor Switches, Membranes, and Capacitive works in general, so I'm not gonna bother with that.
As for my opinion, if you're going to buy a keyboard, especially if it's just one keyboard, because there are people who use different keyboards for different purposes, you want to buy something that you can use all-around. So it really depends on what's your "all-around" business, like, do you play a lot of games, type a lot of words, browse a lot of stuff, etc.? It all depends on your preference. You can try for advice on what you prefer on
MechKb Reddit.As for me, if you're going for a mechanical switch though and for the sole purpose of playing Touhou, go for the Reds. You don't want much force and tactile bump when moving around. Since it's linear, you really won't feel anything, other than the sound. If you think chiclet switches are soft, wait till you try a Red switch.
Oh and...lol, srz...skip Razer. They're horrible. Their PR Min Liang Tan, is one of the most hype-makers of products in the industry. Even lying about how their Razer switches are more expensive than Cherry MX, when they specifically said back then that it was the reason why they made their own switch, because Cherry MX is expensive. And now their Blackwidow X Chroma only features one Cherry MX switch, and it's a blue...Other than that, Razer is known to be quite "lemon-y", because most products people get either malfunction fast, or get broken and RMA'd. And I'm not being a hateful guy here, my experience with my 2013 Naga seriously, the double clicks. My DeathAdder Chroma, which I bought because it was regarded as one of the best mouse in 2015, practically fade clicks and left click is now bottom-out, I had to RMA it and sell it to get a G502 from Logitech instead, but I still bought a Razer Krait 2013 cause it was on sale, and why not? I use it for browsing and stuff. IMO, the only good products they have are mousepads + some of their older stuff like Blackwidow 2013, and tourney non-backlit keyboards. Summary, Razer is pretty much only hype all the time.
I'd rather prefer you get good brands like Logitech, Ducky, Corsair, Element, and some of CoolerMaster. Also if they have some switch tests in your store, try different switches to feel what you prefer.
Remember that keyboards have different layouts. If you want custom keycaps, better get one with a standard bottom row.
*I am currently using a Corsair Strafe RGB Browns btw.
Edit:
I want to comment on this.
Douse anybody here have much experience with gaming keyboards and if they actually do make a difference when playing an input intensive game like Touhou? If they don't make a difference in the end then I would hate to waste my money on them. But hey, maybe a special keyboard is a *requirement* for these types of games? :derp:
Yes they do make a difference, but it will still depends on your skill as an individual. If you suck, you suck. But it will improve in various scenarios, because things like the mechanical switches help ease click points and comfortably do so without getting tired as much, due to the fact that mechanical switches don't usually need to be bottomed out just so it can register the key, it only needs to hit that actuation point, unlike other keyboards like rubber-domed, where you really need that dome to just press the PCB just to register. And that's the main reason why it's mostly used for gaming, because it's just that better. Especially now that mechanical keyboards are now improving by the year thanks to the gaming community, they just keep getting better and better, even lower decibels so you won't hear that noise.
Here's a video of Linus for a good basic understanding on mechanical keyboards
https://www.youtube.com/watch?v=PXCKHoiNu1oNote how he says how membrane keyboards can be fatiguing. And AFAIK tbh, most membrane/domes/scissor switches are rather flat keyboards, instead of in an angle, which can be rather hard from my experience.
https://www.youtube.com/watch?v=QHnMcFGkGcAAnother one.
Still go with your preferences though. Try them out at a store first. If you still want membrane or chiclet keys, go with what you want.
As for monitors. Get one with a lower response time and input lag. You don't need a higher refresh rate monitor just yet, since it's only good for screen-tearing and motion blur if you get high FPS in games with high particle effects, and such, but that's why you have VSync.