Sorry mate, but these are not small projects. You should recheck again what OP stated on thread, he was talking about promising small projects.
DIA, Polkadot, Poolz, and Dego are big projects. Just look at what the teams have done and achieved, I didn't see those are small projects. I can agree with @YOSHIE's statement above, the teams spend many funds to rise the projects. They also do big things by choosing big partnerships and exchanges for their tokens to list.