Converting countrys

US UK AU CAN EU - The countries with money. Simple

south korea, japan, singapur, brazil is solid

Try it yourself, does not matter what converts for anyone else but yourself. Study your sponsors payouts and the tier one geos become obvious as they are usually the higher paying offers. You have to test shit yourself. When I got started in this I tried every niche until one stuck, a niche no one wanted to touch and one that was easily converting (gay). I've long since moved onto dating but the moral of the story is you will need to test offers and geos until something is profitable and works. I think answering this thread is all stating the obvious.

emill said brazil is solid for him but I did crap shit in Brazil traditionally. It's all about throwing shit at the wall until something sticks and finding out what works for YOU not others, imo.

EU is NOT a country...