Unfortunately blackhat tactics still work, especially in other languages than English.
Still waiting for Google to kick in a higher gear to remove these blackhat sites.
I would go with NetEnt Casinos such as Vera John, Mr Green, ComeOn, Guts, Redbet, Leo Vegas and Vinnarum.
For non NetEnt Casinos - Bet365, William Hill.
For European market (especially Nordic region) you have plenty of mobile casinos to choose from: Leo Vegas, ComeOn, Betsson, Mr Green, Guts and a few more.
Great site, rubbish affiliate program.
KasinoKing... A word of advice. Create /go/ladbrokes/, /go/intercasino/ folders and add your affiliate link in the index file of these folder. Link all your links to these folders. Makes it a lot easier and you only have to update one file for each domain.