Look for high quality and low cost pop traffic sources

Hello everyone, are you still using pop streams?

Is there a good low price and relatively good quality pop traffic recommendation? Thank you very much.

offer payout is relatively small, but the conversion is good, so look for cheap pop traffic
We've tested a few traffic sources so far, and none of them are ideal

The traffic sources tested are
Propellerads
Clickadu
Hilltopads
Galaksion
AdMaven
RollAds
Evadav
adCash

Adult traffic sources were also tested
exoclick


Only the Propellerads, adCash, are preferred


Please help recommend, adult traffic source can