If there are other RF extroverts, there is a voice channel in the discord. Perhaps a different discord. My significant other is extroverted whereas I am extremely introverted, I can socialize fine but it takes a lot of energy. For her COVID was a nightmare, for me, I kept thinking that society would be so much better like this.
Even Zoom meetings were insufficient for my significant other. She needed f2f interaction with more than just a few people.
So while discord and phone calls may help, they alone will likely not suffice. I would suggest plotting your schedule and creating times where you can walk in parks that have other people, take a adult ed class, there are some apps like meet up, and keep your ear to the ground for larger gatherings like festivals and fairs. Finally, perhaps you can stage some events for your children, their friends, and their friends parents. Other parents often want to socialize their children and if extroverted would probably enjoy such things and if introverted would probably see the expended energy as a worthwhile investment in their children’s socialization.
I remember pondering how other than disrupting the way I shopped and canceling my gym membership, Covid had almost no impact on my social life. It was the same before, the same during, and the same after. I think the only thing that may have changed is Dad got phobic of his family, and is less likely to spend time with the grandkids(that continues).
My location is a huge barrier. I'm not rural, but there isn't a lot that goes on here. I read a review of the city from a traveler's point of view once that said "If you like getting drunk, this place has good night life, but there isn't much going on here other than that." It was... accurate.
With the kids, things are not always real easy. My oldest is very introverted(he's just about 17). My middle one has some disabilities(autism, speech apraxia), and if I take him somewhere, its taking him somewhere. There is no socializing with other parents, its simply following and directing. His behavior has come a long way, but he still needs constant supervision, lest he walk away, stick his hands in a public tank, or grab someone's stuff and go through it. Paired with his 4 year old brother, who is generally agreeable but very energetic, taking them to anything is a challenge, and all my attention is devoted to them.
I did try a parenting group when my middle son was young... LOL that was a disaster! While one or two of the other parents liked us, I think there was a decision from some to exclude us. I remember showing up to an event and one woman's eyes getting big and saying "what are you doing here?" I told her so and so invited me. Nervous smile. Scurry away. My son didn't interact 'normally'(and that seemed to upset some of them), and I was weird, too. (There seemed to be a lot of common interests involving pop culture and entertainment that while I was happy to hear about, didn't actually share, and I think that made some not real fond of me.) We tried some stuff and the library, too, and while that went better and I don't mind taking the kids to, there really isn't much of a social fulfillment(too busy with kids).