21st.dev
In short: Getting listed on 21st.dev is free. Plan for about 10 minutes — it is a form plus links and assets you already have.
What they ask for: Publish React UI components and link your site from your author profile.
Publish React UI components and link your site from your author profile.
Components must be original and working.
Open the submission page on 21st.dev and complete its form — that is the "Open submit page" link at the top of this page.
Components must be original and working.
Priority sets the band — this one is later. Cost (free) and effort (quick) move it within that band, which puts it in the long tail tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.