There are so many people waiting for the signature campaign paying in bitcoin so if you want to be updated to the latest signature campaign available you can check in the services section because it's the board that the signature campaign managers are posting when they are looking for campaign participants. You have to be fast though because within just minutes, there are already many applicants. This is the link.
https://bitcointalk.org/index.php?board=52.0If you cannot find a signature campaign paying in bitcoin, you can try in alternative section. There are so many bounty campaigns out there and you just have to choose what campaign you want to participate in whether it's signature campaign, social media campaign and others. Most of them pay though after their ICO which may take a month or few months before you receive your pay. This is the link.
https://bitcointalk.org/index.php?board=238.0