I have gone through to types of keyboards that were mechanical. First of all. The blue switches are decently loud. Anything different than a blue switch will be much more silent. Now Second, There are MANY mechanical keyboards out there. I have only used 2 brands. 1 of which was Razor. Razor have made i guess a decent keyboard. The switches on the key are Razors own switch. They wore out REALLY fast for me. The keyboard lasted about 2 to 3 months until i realized the keys started to get worn out. My second keyboard which I still have is the Corsair Strafe Rgb Mx Silent Edition. This keyboard has lasted me a long time. I have had this keyboard since the week it released which I have no idea when. (Anybody know the date? reply to let me know) An way this keyboard has a mx silent switch which in its name says its silent which it is. The only thing with multiple keyboards is how dirty they can get. I recommend to not eat by your keyboard because of it getting dirty so easy. Any way back to the switch Part. There are like 3 mainly used switch
Reds
Blues
Browns
Info about a Mechanical Keyboard.
Linus made this video like 3 years ago but still give you a general idea of what a mechanical keyboard is and the differences of each Switch. If you want more info about switches in.
My suggestion for a keyboard would probably be a Das Keyboard.
Das Keyboard don't make there keyboards for gaming. They make them for more of a typing pov. Das keyboard from what i have heard are built very well and DON'T were out on you that easy.
I would even suggest going to your local hardware store and testing out the keyboard they have in there gaming section of the store. Most hardware stores (at least where i live) Have mechanical keyboards sitting out for testing.