casheer.net is new to me.
You could find out what the most popular coins are simply by looking at what coins the biggest exchanges list.
Extremely new.

What we're looking for is more than just "market cap". Casheer isn't a speculative platform. It's a platform for connecting cryptocurrency users and merchants. We're looking for those coin communities that have a genuine interest in Casheer offering consumer-to-merchant utility. Not all coins may deem that such utility valuable, so it's important that these communities voice their support for inclusion.