Many lower tier tournaments have brackets divided into more adjacent ELO categories. Huggieg just recently announced a Mixed Game Mode tourney where groups will be divided by ELO. You'd likely end up in the same group as me with 1150 ELO, that is, if I decide to want to do another tourney myself 11
Once you played one or two, you'll easily get a network on Discord where you can learn about new Tournaments. If you get along well with your opponents, you may even be directly invited to other Tourneys.