True cognates:
piano, viólin, trompeta, saxofón, profesor,músico, artista, radio, television,clases,junio,julio.
false cognate:
dólares
It would be "Mis" or my, so the sentence would be Mis ritmos favoritos son la guaracha, la cumbia y el danzón, Because "Mis" is a possessive adjective that is collective.