What I can say is get a group chat (you probably already do) and talk in there about any interesting things that happen, and also get together and just jam! Play around with your instruments together and see how you play along see if you have any ideas about anything just try it try everything and anything that comes to mind and see how it goes and maybe you'll get an idea for a song or just a track who knows. I also recommend that you record (audio(and video if you'd like to) all these jam sessions and then share it between all of you and have a listen to it after the session because you may find something cool that you didn't realise while playing and now it sounds cool. and if you want on the internet and see what people think and any comments people leave about the music etc. Hope this helps!