You can find a lot of currently running Bounty Campaigns available on this forum and you can check it one by one in order for you to find the best bounty campaign over the others.
https://docs.google.com/spreadsheets/d/1CiQRYU3JJyUnekC77DCG_7OgVUCeZy9l9KLaCaEwSik/edit#gid=0
it's an online excel web app that the owner is always keep on updating to help bounty hunters finding best bounty campaigns available in this forum.