I've had requests for accounts to follow on here for specific countries/regions. There are many listed at:
➡️ https://fedi.directory/local-and-regional
This has accounts from most European countries, all US states, all Canadian provinces etc. (Some have fewer accounts than others though.)
To follow an account listed on the site, copy-paste its Fediverse address into the search box in Mastodon, then click follow.
To find out more about an account on the site, click its Fediverse address.