I don't have bicycle repair stand yet but plan to build one. So far I made do with suspending bike from a tree branch but the bike swings too much, still better than nothing.
I don't like the idea of just one holding point like that reference above to the Park stand. That's OK for adjusting brakes and routine cleaning but not for serious wrenching, especially on today's CF or aluminum frames. There is CGC video on YT on DIY stand using bike handlebars to cradle the bike top frame tube in ...

Looking around, you get nice ideas like the 'sawhorse' stand, where you remove both bike wheels and attach the front and rear stays by means of quick release skewers to some stable wood base, sawhorse in this case, although that's not very stable setup, can think of much better. Can buy cheap skewers with hollow axles and attach the axles by some clamps to a 2x4 and take it from there.

On another thread here, someone had an idea making a repair turntable from a cracked bike frame (using BB as a swivel point and sawing off the frame tubing at some radial distance. This lends itself to make a stable three point frame attachment and mount the turntable (somehow made 'lockable' in a position) on some stand so you could rotate the bike 360 degrees in both vertical and horizontal position to get the ultimate easy access to every part of it.

Bike specific tools mainly concern the bottom bracket and headset as well as cassette removal sockets as pointed out already, the rest is mostly hex wrenches. Depending on how fancy bikes you have in mind, you may want to use torque wrench but that you likely already have, also I think, those mechanically more minded folks get by with using normal wrenches and their feel for the job at hand.