For anyone who wants something that's not Disney and not anime, it's worth looking for the specific nationality you want your avatar to appear (Korean, Vietnamese, etc). Not much to choose from, so look for something you can modify slightly. For me the big selling points are the eye and nose shapes, because face shapes can be modified in other ways. Note: some heads are better than others at allowing a "flat" face shape without going all hamajang.
There isn't much for me that looks at all kanaka maoli, so I went with a Lelutka Nuri head, added a Jael "Eve" shape, then modified it. Final touch was adding AD's "Maritza" hair in dark browns. Still hapa, but closer 🙂
Several friends have Genesis heads, because Genesis do shapes like Mieko and Fei that are at least vaguely close to what they wanted. Then the shape can be modified for individual preferences. Another friend has a Vista Emily head with the Ryo shape, and that works really well for her. Titta gets the boys.
Gotta admit, I'm pretty horrified by most items in SL Marketplace described as "Japanese." I don't know what those sellers have been smoking but they have definitely never seen a Japanese person.