Whats your favourite Alts?? 
I actually have no much favorite than Bitcoin but i have been holding some altcoins as i am in diversification . Ethereum always for the number 1 altcoin. Next is Litecoin and the others, I think the popular utility coins of exchanges but I barely hold them because I've sold them all.
I think you should consider Binance(BNB) for Holding and some Ripple as well .