Salsa and Bachata classes:

https://www.rumbaytimbal.com/

https://www.salsaycontrol.com/

Lindy Hop:

https://www.bostonlindyhop.com/

https://lilrhodylindyhop.com/ (in Providence)

Zouk, Bachata, Kizomba:

https://movesandvibes.com/

https://bostonzouk.com/

There’s also tango, blues, west coast swing, ballroom, and probably others I am not thinking of right now.