Bounty Campaigns is a very easy way to gain quick money and there is a perfect category for everyone. I've done a lot of bounty's and I really enjoyed them.

To find bounty's, nowadays all active bounty campaigns can be found on Bitcointalk forum. If you search in the right places for the right keywords you can find thousands of them. Another option is google something similar and you might have the luck to find something interesting.

example sites:
https://bountylord.com/
https://bountyhive.io/
https://bountyplatform.io/

Join as many as you can so you could increase your token shares also, most of the bounties like facebook and twitter, you must have many followers and friends. The more followers / friends, the better the rewards was.