Yes there are lots of different ways to get free crypto.

Personally, I am not a fan of the bounty as like everything the big players in the social media space promote and share crap coins without doing much research.

Airdrops are great and easy to join, plus if you review them and share you can get some extra coins.

Ethos are currently doing a giveaway / airdrop of several coins if you pre register for their wallet before 31st Marc

Confirmedned coins so far Axpire, BitDegree and Smart Cash.

Thanks