If you need nofollow and Sponsored Links checker extension! Supple tool will check and highlight the webpage you are viewing for all recently supported rel tags announced from Google. Rel=nofollow, Rel=sponsored and Rel=ugc. Use this extension will show you very quickly with colour coding the types of rel tags a website has on its links.
Please read the originial post here: https://alternativeto.net/software/highlight-no-follow--ugc--sponsored-links/