Mainlander rhymes with:
highlander, nederlander, sjolander, stadtlander, swartzlander, wicklander, bystander, calamander, gerrymander, highlander, nederlander, oleander, sjolander, stadtlander, subcommander, swartzlander, vandevander, wicklander
Mainlander sounds like:
melander, millender, millimeter, millimetre, molander, mullendore