Red Dragon k552 is fully mechanical and has tactile (but loud) blue switches. It comes in no led, red led, and rgb led versions. It comes in at much under 50 depending on version.
The Corsair K55 rgb is a very very good membrane keyboard. It looks great and i have heard it feels pretty good, but if you want mechanical its not for you.
The razor deathstalker is another good membrane keyboard.https://m.newegg.com/products/9SIA4RE4S77866?ignorebbr=true&source=googleshopping&nm_mc=KNC-GoogleMKP-Mobile&cm_mmc=KNC-GoogleMKP-Mobile--pla-Corn+Electronics--Gaming+Keyboard-_-9SIA4RE4S77866&gclsrc=aw.ds&gclid=CjwKCAjwwZrmBRA7EiwA4iMzBEBnsKEDwiwIMOM40eINXE1R2Mv9rTm9rZIwa-KhHGrUzMPORtjx8hoCpSAQAvD_BwE
This is a very much a personal thing. What fits others may not be of your liking.
Everybody rave about mechanical (long key travel) keyboards, I personally don't know why. I used mech keyboard in the past. Yeah don't get membranes, they are spongy but I got used to thin scissor (thin) switches, like the Dell am using at work is perfectly fine and I can type on it all day.
Are you a fast typists? Look for large space bar, Enter, Backspace. Shift keys 'cuz u will be using those a lot.
I personally used a Dell OEM membrane keyboard for typing and gaming and was fine with it. The rubber domes have some feedback and a bit of travel.
Since I got my RedDragon K552 with mechanical switches I prefer to use mechanical switches over membranes. They feel more tactile and more natural to me. I can go back and use a normal rubber dome keyboard if I need to, but they just feel imprecise.
I have grown to HATE the chicklet style keyboards that have no travel and no tactile feedback. I'd rather type on my smartphone or use a ZX spectrum keyboard before coming in contact with one of these.
I think a quality non-gaming mouse is fine for most people.
Keyboards are dependent on your own feelings. You can always travel to a local store to test keyboards and see if you like membrane or mechanical.