You can always follow the "Recently added" list on CMC: https://coinmarketcap.com/new/

Other than that, I suggest you do a little research for the latest successful ICOs. Then, follow their twitter pages and wait for their tokens to be listed on exchanges. After they get listed, wait for one or two weeks (or even more) for the price to drop, because there are always a lot of people who try to take profits from the starting price and they will dump their coins.