This is pretty interesting. I know it has been around for a bit but there is an interesting IP based emulation front-end called AmigaLive (http://www.amigalive.com/). This front end hooks into FS-UAE in a very easy to set up configuration and lets you play many classic and AGA games over the interwebz with other players. There is no need to hunt down ROMs and setup local files other than the GUI install. You might have to configure it for your own joystick setup but that is likely the only challenge to get it up and running.
A streamer started popping up in my feed the last few weeks who goes by "Hi7ch" on Twitch that is hosting play out of the UK weekly. Add him to your followed channels for some amusing multiplayer Amiga gameplay! https://www.twitch.tv/hi7ch. There may be other streamers worth following in the Amiga/CBM scene, but he's the only one I've found doing live game play with the audience!
See ya on the stream!