Except for STEEM, I think you will not go much wrong with choosing either NEM QTUM or STRATIS. My gut feeling is for STRATIS mainly due to the fact that I myself am holding a bit and I have seen new services accept STRATIS as payment options. NEM will always be strong at some point later due to Japanese government intention to using it. QTUM I also feel has good development.

Why not 30% in those 3 in 10% in STEEM? That is a safer option.