Socpublic is a task marketplace where real people complete assignments. I used it for several years. Create a task, describe the required action, and request a username or screenshot as proof.
Best for
Referral registrations and simple actions.
Tasks requiring a screenshot or login as proof.
Actions from real performers instead of automated boosting.
What to consider
Check the login, screenshot, and duplicate submissions before approval.
Some performers may submit unrelated proof.
Clear instructions and acceptance criteria reduce disputes.