Welcome to Texas rogerdodger. I live in McKinney about half an hour (on a good day) north of Dallas. Our normal pinball league season has been cancelled, but I’m sure when Covid things start slowing down it will resume. It’s normally held at various collectors houses throughout the metroplex, with larger events held at arcades like the recently cancelled Pin-Masters that was to be held at the Free Play arcade in Arlington.
Between the National Videogame Museum, Dallas Makerspace, league & IFPA tournaments, and the Texas Pinball Festival there’s usually a lot going on. The Facebook groups SKWilson linked will get you the majority of things posted. There’s also a mailing list you can sign up for at hassellcastle.com for all of north Texas. You’ll see a lot of the same stuff on the Facebook groups, but occasionally things will get posted for sale only on the mailing list.