if you're looking for "trans-coded" villagers, julia and papi are definitely the way to go! julia is female but modeled after male peacocks, since females of that species don't have the colorful plumage she does, and papi is male but modeled after female okapi, since males of that species have visible "horns" (called ossicones) and he doesn't have any. it's one of my favorite animal crossing "facts" actually!
Great analysis and makes more sense than stereotypical gender typecasting.