CRO is a very safe bet. They are doing things very much similar to Binance with BNB. They have some serious marketing planned. If you compare the marketcap of BNB with CRO, I see significant growth potential that is still blue chip. ALGO has much lower marketcap which could allow for better growth.
I have a special place for XMR and ADA for the technology. Investing as a speculator on them is a different story. The others in the list are heavily dependent on centralized entities. CRO could become less dependent on FORIS DAX, INC. over time just as BNB is less dependent on Binance now.
I think you are choosing well. I'm especially bullish on CRO at this moment. Personally I prefer to stay away from Top 100 cryptocurrencies. Out of the projects I didn't mention, Fantom is very underrated at the moment. They are using technology from Hashgraph and have some very innovative features going beyond a mere EVM copy.
!PIZZA
Thanks for this great reply