First of all, the population of this Magic forum is really just myself. So you may be disappointed to find not much conversation here. Nowadays I mostly post about my own card designs and occasional deck brewing. (Particularly blue decks.)
I don't really play (online or paper) CCGs any more. For various reasons. But if I would, I'd play HexTCG over Magic. Because the former fully uses advantages of the digital format. Thus more innovative, bolder designs. Magic design will always be hindered by paper, physical version. (Plus I really hate the Modern frames; such an eyesore. So hard to look at especially on the screen.)
But that's just my opinion. Don't let that stop you from enjoying whatever you find fun.