Coracle.social by @hodlbod has some WoT functionality. 

Also
@straycat
built
https://github.com/wds4/pretty-good
He did a presentation about it:
Bitcoin Park: Nostrville 2023: Nostr, Lists, & Web of Trust https://podcasters.spotify.com/pod/show/bitcoinpark/episodes/Nostrville-2023-Nostr--Lists---Web-of-Trust-e2cvi12


 

 @ODELL Citadel Dispatch topic request: Web of Trust