Honestly, the 5 projects you mentioned in Backryswap, Cake, Poolz, Dego, Juld are great. Yet if anyone can invest in these projects I believe he will definitely benefit. Apart from this, there are some other good currencies like Dot, ADA, Cure, TRX, Kick etc. Hopefully you will get good profit even if you invest in them. However, before investing, you must check it yourself and invest at your own risk.