How to practice team contests if you don't even have a team? sounds lame but it's a problem for many like me.

We generally join in on google meet or discord, and if i want to show my code to my teammate , i present it or copy-paste it on a shared google doc. each of us tells the team which question we are attempting, and if someone is stuck on some question, one other teammate becomes available for discussion May be not a very impressive solution, but it has proved effective for us