osf.io
In short: Open Science Framework (osf.io) accepts public research project. It is free to submit, takes a moderate amount of preparation, and scores 66/100 on our impact ranking (useful).
Create a genuine your tool study, reproducibility project or benchmark workspace with project links and public materials.
Use only for bona fide research or open project materials; accurate contributors, licensing and non-promotional descriptions are expected.
Priority is medium, which sets the band. It is free and moderate to complete, which adjusts it within that band. The score ranks your queue — it is not a measure of domain authority.