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wordpress.com
In short: WordPress.com (wordpress.com) accepts blog/profile links. It is free + paid tier to submit, takes only a few minutes, and scores 45/100 on our impact ranking (long tail).
Create official tutorials/mirror with links.
Avoid thin duplicate posts.
Priority is later, which sets the band. It is free + paid tier and quick to complete, which adjusts it within that band. The score ranks your queue — it is not a measure of domain authority.