I don't think Chabad has ever been called mainstream
Mizrachi is the modern/coed/zionist option. More modern chabad families go here.
Hebrew Acedamy is center/litvish. More traditional chabad families go here.
Mosdos is more right wing (no internet/tv) and people who are more frum and chasidish go here.
An Alexander Rebbe lives here and has a small chasidish crowd in his shul, but there's not a large chasidish community.