hackage.haskell.org
In short: Hackage (hackage.haskell.org) accepts haskell package listing. It is free to submit, takes only a few minutes, and scores 68/100 on our impact ranking (useful).
Release a useful Haskell library or command-line client with homepage, source and bug-report metadata.
Hackage requires open-source, meaningful packages; uploaded versions cannot simply be replaced.
Priority is medium, which sets the band. It is free and quick to complete, which adjusts it within that band. The score ranks your queue — it is not a measure of domain authority.