Please don't do that. Play games by other creators and leave honest comments. They'll click through to see your work. People reciprocate when you're nice to them. And generally engage in the community. Answer to posts. It's not so much "promote yourself" as be there.
Viewing post in How much self promotion is allowed?
I have some advice! Itch is also a social platform. Just play other peoples games and comment on them (without promoting your game) and then they might be like "oh i wonder what this guy has made" and check out your game. Who knows you might find new players.
Also, if you think your game is good enough for say, youtube, maybe email a youtuber. Also, definetly promote on discord (be sure to check first if the discord you are in has no rule against it.) Also most discord servers i'm in have self promotion channels. Just dont be spammy about it.
Also, other social media, tweet about your games on twitter etc.
Marketting is hard. But eventually you will gain some audience.
I’m just actually gonna leave it. Also check this out: https://itch.io/t/1968961/get-your-name-in-my-game If you buy the game, you will be one of ten people to have there names in it! And this is not a raffle, you WILL actually get your name in it as long as you are one of the first 10 people to buy it. Make your move quick though, as there are 7 slots left! Check the link for more information.