The new Star Wars movie, The Mandalorian and Grogu, is all about the other Hutts. Twins took over the Hutt empire after Jabba died, and they recruit the Mandalorian to track down and rescue their cousin who was kidnapped as a child. It got mixed reviews, but I thoroughly enjoyed it.

At least in the movies, there's only one Hutt empire, with a bit of a power struggle within the Hutt family. Sounds like the twins were eager to take over in the power vacuum when Jabba died. Even the Resistance has to work with them occasionally because of the powerful connections their family has.