The Whatsaround App is a great social media app for posting photos or videos where you can actually turn a profit. I've posted 29 photos, added some friends, upvoted photos, wowed some photos and earned 72 coins. I can trade these coins for 1 ethereum when I get 1920 coins at present value. I could get gift cards instead if I choose. It's a very fun app where you will make lots of friends all over the world. Here is my link if you want to get some free coins at signup: https://www.whatsaround.com/signup/jjEA9
Let me know if you've found any good earning apps.