I am generally a "touch typist", having learned keyboarding on a manual typewriting more than 60 years ago.
When I bought a new PC from Dell, it came with a Dell keyboard with a USB connection. The keys were nearly flat on top with straight sides and little space between, which meant I had constant problems with positioning my fingers without looking down on the keyboard. Since the keyboard was black with white lettering (very poor ergonomics), I had to keep the lights on in my home office to see where I was placing my fingers; bright indirect daylight through the adjacent window was insufficient. The spacing between groups of function keys at the top was too little, which meant that I often hit the wrong function key.
I quickly replaced the keyboard with a beige Microsoft keyboard, again with a USB connection. This was purchased through Amazon.com. The keys were tapered and concave on top. There was sufficient spacing between groups of function keys. Its design indeed met my needs. However, certain character keys were defective; quickly repeated strokes did not register. If I typed "11", for example, it would give me only "1". At first, this was merely an annoyance. Paying my bills via the Web through my credit union, however, I once paid a bill requesting $110.00 by sending only $10.00. Microsoft, the manufacturer of the keyboard, referred me to Amazon.com. Amazon.com indicated they no longer stock that keyboard and refunded my purchase price and even said to keep the keyboard.
My wife's PC is several years old and has a KeyTronic keyboard that is even older, from a prior PC. I found KeyTronic on the Web at https://keyboards.keytronic.co.... The most pricy item in their list of keyboards was under $100 unless you wanted a package of 10 keyboards. They have wired and wireless. The have PS2 and USB. They have black, light gray, and beige. They guarantee a keyboard for as long as you own it (as long as they remain in business). My KeyTronic keyboard is wonderfully noisy, letting me know when a key-touch actually registered.
By the way, I much prefer wired keyboard and mouse. I really do not want to deal with batteries. Too often, I have had a battery leak and destroy the device that used it. I now have two extra keyboards for anyone who want them.