Where to publish app except google and samsung

Hey can you tell me, where it makes sense to publish your app, if not in play store or samsung apps?

I am not interested in a special country, but of course, a high amount of US users would be great.

Greets, Alex

SlideMe is nice. Easy to upload, a lot of downloads (at least at first days and after updates). Amazon will be probably great for US users, not that good in numbers usually though (but sometimes can surprise).

Thanks, I already use SlideME (totally forget about it xD) but it seems they take years to approve (what a joke :D)