In my 4 years in FRC I grew to use a certain set of tools, I'm not saying that these are the best in general, but what I prefer as far as tools.
Wire Strippers:
here
Flush Cutting Wire Cutters:
here
Good pair of dikes:
here
Wago insertion tool for the PDP(These things are amazing, its 1000 times better than a screwdriver):
here
Ferrules and this crimper:
here
Good set of small screwdrivers for electrical only:
here
Crimpers(Ratcheting kind, with die sets for whatever crimps you use):
here
Soldering Iron(Chisel Tip):
here
Hakko Iron Tip Cleaner:
here