It looks like dev.to has some new functionality that allows you to say you'd like a mentor. I haven't used it yet, but it sounds neat.
Also, your local meetups might help you meet people who would be willing to mentor you. Have you tried attending meetups?
Lastly, I know there was a push on Twitter a while ago for people to post that they are willing to accept mentees. I can't remember when that was or what the hashtag was, but you could probably find it!
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