If any of you ONLY had $100 - what would you put it on today for the maximum return? Preferably not an ICO.
Non-ICO - that's quite not possible, dude. The last coin I remember which did x100+ was BNB token, launched by binance. Currently there are nearly no such projects, with x100 potential, in current conditions x10 - after purchase looks really great, so better get more money and choose a good ICO from upcoming ones.