In case you missed it, StreetPass is a free open source web browser extension which helps you find accounts to follow on Mastodon:
➡️ https://streetpass.social
After you've installed the extension, just use the web as normal. Your browser will start noticing if sites you visit have Mastodon accounts, and will make a list of these accounts.
(Owners of websites need to have a verified link to their site on their Mastodon profile. More info here: https://fedi.tips/how-do-i-verify-my-account/)
StreetPass is by nostr:npub1n3l0r4swqj2pxyhn9785ezgv308r64zwrj2qwqnc27lqzfpaqyaqq6gzey