Yeah those are resteem bots that upvote they are trash and only good if you want some engagement and you’re willing to take a loss! You can use bid bots for profitable upvotes but you’ll need to time them correctly! And it’s kinda pointless you’ll make like 10 - 25% ROI after curation

The best way is to make friends and join communities! If you check out my blog theirs a steemit cheat sheet I posted with some cool opportunities you may like