I like Ripple, I own a little, I think it's a good hold and wait coin. But, I dont like how you can't mine it. You can mine LiteCoins or can at least try. But I get your point.
You can mine Steem Power and I think the platform has huge long term potential if you keep reinvesting. I also like Monero and AEONS long term, you can mine those too and the tech in unique. Ill be mining all 3 soon, Im going to make a 3 node cluster with 18 core Parallelal RISC CPU each. Parallel cluster computing is the future of mining .