Suggest me a good CPM network for INT traffic

I can get 30-40k (even more, if I put more work into method) of International traffic daily, but I can't seem to find a good way to monetize them. Tried cpa locker, best I got is around $80 per day which is too low for that ammount of traffic. So is there any good cpm network using which I could get atleast $2-$3 for 1k impressions and after that send them to content locker?
Niche is fun/interesting stuff.

Btw if you got any other monetization idea, feel free to suggest

Thanks.

Thanks Wim, but I'm more looking for some free monetization method, I don't want to charge them for sms.

try mgcash