I like to collect free coins. If you don't already use Presearch try it. You earn .25 tokens each time you do a search and you can sync your wallet across multiple devices. https://www.presearch.org/signup

Pi is a recent one I started that has referrals.
To claim your Pi, follow this link https://minepi.com/stash186 and use my username (stash186) as your invitation code.

Maybe this is crazy, but there was a time BTC was 5 cents, and no one told me!!!! HaHa

Good luck