Sims4Studio has a batch fix to remove CC for random, and there are mods to reduce the number of townies that are generated. otherwise you can just edit the townies in CAS. before going into CAS (if you're on the PC), type ctrl+C, and a cheat bar will appear at the top left hand corner. type "testingcheats on" to turn cheats on, and then "cas.fulleditmode." then go into your households, click one to edit, and you can change their age, body type, skin color, details, everything. that way they will look the way you want.
the way I play is, every time a townie is generated, I delete them. I make my own sims, and I like to see them running around instead of some ugly generated ones, because you're right, they often look terrible. the ones I get usually have a very square, broad jaw and droopy eyes. :/
