I can suggest you good signature campaign but it means that I will give you a part of my reward. That's why - I am not advice you to take XCARD camaign. It's only for me and choisen one. But if seriously - you can take a=existing project if you have a good bitcointalk rank. Payment should be good.
Good campaign now are those that pays in BTC, those who pay tokens are good for people who are willing to wait and trust the project.
I was a fan of ICO signature campaign before, but time changes now, so I'm doing a BTC campaign although it pays smaller compared to ICO signature campaign in the past, but at least I can get it weekly.
Actually that depends on your preference, some people choose tokens instead of BTC, so it's up to them, what's important is you will get the reward that is promise to you when it's payment time.