Lets list some shitcoins (both as jokes but also could have potential).
I'll start: King shitcoin = Litecoin LTC 🎉
Possible potential = Ziliqa ZIL
Verge, TRX and of course BTC.
Haha ye XVG got hacked AGAIN! All Segwit coins are shitcoins obviously, BTC = Shitfork
Not to mention every fork of Bitcoin post-segwit that was manifested to discredit BCH.
PHR (Phore) and SYS (Syscoin) are marketplace coins that could take off they beat out OpenBazaar in the rankings. Kinda doubt they will be anymore then Top 10 coins in near future.
XRP is likely out of luck if it really is never ending ICO scam (or is that just Fake News?). Monero (XMR) could do better if more wallets supported it.