I think Request Network (REQ) is the most promising coin among those listed by you. But to tell the truth I don't understand why do you want to invest in coins which are necessarily below $1. What logic is behind this decision? If you think they can also rise above $500 like some known cryptos but now they cost below $1 so it worth investing in them, you are probably wrong because few coins, if any, have the potential to rise 500+ times nowadays. If you were monitoring the market on a regular basis you would know that all the established coins go up and down simultaneously and that is because there's no big difference in their acceptance. It is highly unlikely that a coin, however good it might look, would rise 500 times while others were staying where they were. (Of course we exclude sh*tcoins with with around $10k trading volume because anything can happen there but investing in them is not recommended).