PoS coins and masternodes re the best option ATM. There re several interesting coins both, small and big, which offer this option. But this is the only truly passive way of making money in crypto.
If you do decide to go this path, make sure you choose coins with deflationary roll-out.
I beg to differ this .
Pos coins are very risky option i personally invested in arctic coin 2 moths ago and now its become half in price.
Actually the coins are only good for 7-6 days then they all drop in price.
and the main problem is most of them donot give you daily stake.
So you have to be pro active after you invest to deal with the loss.