A few years ago Pete Margo and Mike Sigel started something called United Billiard Leagues (UBL), using a handicap system that gives players varying numbers of balls in hand in each rack depending on their skill level. LoreeJon Jones Hasson Brown was promoting it. I think that effort actually got off the ground, but I don't know to what extent. Then in 2021 it apparently changed names to United Billiard Amateur League (UBAL) with Margo still present but Sigel not in evidence. Neither website (UBL, UBAL) seems to be reachable now.