How do I get back into it?

Hey, putting out a question. I was playing call 1.6, and cs source, was in the CAL (cyber amateur league) cal-im 1.6 and cal-main for css

Interested in getting back into it. We used to go on mIRC and find scrims and pugs. And that plugged you into the competitive community.

Where do I go- to get plugged into a competitive community. I’d be looking to join a team and scrim, and not just public server action.