I think the best way would be to get and ride and chat with other riders. You will most likely find that other riders will have some sort of group chat set up. My LBS has a ride evening and they usually have (when weather permits) have beers and pizza from their shop so that’s a great way to meet others.
I set up a small WhatsApp group sometime ago and we have about 25 in the group mostly local to Midlands. Most in the group will ride at least once a week, albeit not all together. Some stay local, i.e. Wyre Forest, Worcs, some a little further to FOD/Cannock, and others will go at the drop of a hat to anywhere! The guys in the group are mixed abilities and ages.
This Sunday a couple of us are riding a 26 miler in Shropshire, last weekend was the Gap in Brecon and Climax a few weeks before that. Others keep it more local. Although 5 of us head to Scotland for 6 days later in the year.
In short, get out and ride, meet and mingle and be open for a beer.