doctorbadwolf
Heretic of The Seventh Circle
IME, DPR is much less important than versatility to the success of the group, but either way monks and rogues are great classes.This. Monks better at range than a few classes. Shortbow at the worst, at least you're dex based.
Damage is fairly close overall the exception is feats. The -5/+10 ones are borked. I've seen DMs allowed then and then give out a decent magic great weapon or longbow.
My way of fists monk dealt a lot if damage, barely bothered with stunning strikes just tripped everything.
Much like rogue though if you use mobility a lot your damage craters. There's a time and place for mobility but death us best debuff.
Barbarians are often frustrating to play. I've never felt frustrated playing a rogue or monk. Shooting the dragon with a shortbow is much better than trying to throw javelins at it. Leaping off a tree or building or whatever to get onto the dragon is awesome and effective, and you're more likely than most to survive rolling crap on acrobatics or a dex save or whatever the DM asks for to avoid getting bucked off. If you stay on, depending on DM, you might have advantage on attacks, and even if not, you're now in melee with the dragon. Sweet!