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hashnode.com
In short: Hashnode (hashnode.com) accepts blog/profile backlink. It is free to submit, takes real preparation and a written pitch, and scores 63/100 on our impact ranking (useful).
Post technical/product story with canonical link.
Use original article; don't duplicate everywhere.
Priority is medium, which sets the band. It is free and involved to complete, which adjusts it within that band. The score ranks your queue — it is not a measure of domain authority.