How do I find local high paying adsense keywords?

Hello,

I want to start a niche site in Swedish, however, I need to know more about cpc on different keywords, I can't use public lists since the market might be different on Swedish werbsites. Can I check this somehow without a paid subsription somewhere? Thank you!

Keywordtool.io and switching language to Swedish i think, Ahrefs and keyword check might be also a thing

Well you could look for "highest paying adwords" which from what I believe roulette and live casino are up there. Or you could search specific niches with Ahrefs or Semrush.