There are all kinds of contests. Photography, science, riddles, 2 or 3 lotteries, 3 or 4 different newbie mixers, guessing games, madlibs, write the next chapter, thanks for following, #contest is a great tag. Some can be scams just for your upvote, look at the reputation and wallet of the person before you upvote a new contest.
👆 This guy is right though comment, comment, coment. There are at least 2 bots that scour the blockchain for good comments that havent been upvoted and will drop you upvotes on quality comments.
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To reiterate what @royaleagle said. Comment, comment, comment. My biggest author rewards have come from comments. Engage and respond and you will have such a better experience on this forum.