but the remaining few don't qualify due to low traffic and "lacking sufficient content".
Afaik, adsense doesn't disqualify a site for low traffic but they do for insufficient content and also the content must be of high quality. Nowadays SEO doesn't help much if the content is of low quality.
If you are looking for Bitcoin Ad Networks which accepts low traffic sites then I guess there is none (except a-ads), every network has a minimum requirement either on traffic or alexa rank.
But there is some Pop-up ad networks that might accept low traffic sites, such as Propeller & Adcash. I suggest not to popup ad networks because it may negatively affect your traffic.
It's weird to me. OP says he is tired of using AdSense, most popular and ad network with a higher pay rate of all. If google approves ads on his pages, it is a win-win combination to monetize web traffic.
But, they say that have low traffic volume and probably they have no chance to be accepted from Cointraffic or Mellowads so he must think about low-quality service like Propeller ads and put critical Pop-up ads. So because he is tired of Adsense, he wants to leave the best and largest capacity to probably worst (Pop-up) monetizing method.
Whatever in both situation he needs to bring more visitors if he wants to have any profit from there.
thank you for your answer, actually I have a team to work as a blog / web writer, and each team has their respective duties. I and the team take care of about 10 web / blogs, only 2 have high traffic that is registered on Google adsen. so the remaining 8 that have low traffic, I want to try monetizing a blog that accepts bitcoin payments. of the 8 blogs, some of them are mine.
google adsen is the best platform with high payment, I just want to find a sensation with bitcoin payments.
You always can add crypto ad network without removing AdSense. It works, but you have to watch out for visitor experience, no one will go back to the page if it is overloaded with ads or like LTU_btc says the worst-case scenario is to use a pop-up. there is no sensation here with the bitcoin advertising network but you can earn some BTC amount if you have solid traffic.