surio.org
In short: Getting listed on Surio is free, with optional paid upgrades. Plan for about 10 minutes — it is a form plus links and assets you already have.
What they ask for: Create a public professional portfolio and add your tool as a real project with official links.
Create a public professional portfolio and add your tool as a real project with official links.
Use an authentic individual profile and substantive project content.
Open the submission page on surio.org and complete its form — that is the "Open submit page" link at the top of this page.
Use an authentic individual profile and substantive project content.
Priority sets the band — this one is medium. Cost (free + paid tier) and effort (quick) move it within that band, which puts it in the useful tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.