Polymath is looking good, they've built a huge community and their projects looks good. It could be 10x-15x profittable.
Polymath is probably my biggest bet right now, together with Cointed and Bee Token
DADI, Swissborg, Cointed, Giftz, and Bee Token.
Reason: Solid teams, high profitability, well-written whitepapers, great reviews, credible records. Try them out!
Good choices, read above comment