In Los Angeles there’s a Persian chabad shul. In Syrian circles you won’t find many who join a Chasidus. You’ll find this more among Moroccan and yemenite Jews. Some yemenite Jews (not technically sefardi) are in Satmar.
It’s a shame there are any. What happened to communities that produced most of Rishonim and Achronim? There a few Sfardi yeshivos today even in America. They should be strengthened why stray fro your heritage?