Covertzombie Lbry isn't looking bad and Monacoin as well. I think mono will take off as it's popularity in Japan is growing.
tym3k Verge is also good, you can buy now, beause it dropped a bit after a huge rise. (which will continue in the future)
Provia22 I like very much NEM ma the problem when you study a coin is that it becomes a "mission", and so you're not able to judge well
strawberry_pancakes I think Delphi and Rialto (XRL) are good ones in my opinion. Delphi is going to have a crowdsale soon and Rialto will start trading in August.
infernorobot I own ETH, XRP, XLM, NEM, ANT, DASH and BTC. I like many other coins as well, like GNT, ETC, IOTA, SC, XMR and LTC. One can't really know yet which one of these projects going to be really useful and survive in the long run.