Well, if nobody hosts, nobody will find sessions to join- it's as simple as that.
There are four people in this thread expecting to find sessions online while there are no people wanting to host. Sessions don't just pop up from thin air.
You'll need to show at least some initiative if you want to fly online. Why not just host the next time you sim anyway? It doesn't impact the flying experience at all and you even get to choose the scenery.
You can also use the AccuRC Discord server to coordinate online sessions.