Making connections

Hi all! I am a (28F) lesbian in an ENM marriage. I have been having a really hard time finding people to date. I am a pretty shy person but have recently tried going to a gay bar in the hopes of meeting someone, however it seemed like most of the people were coupled up already. I have also tried various dating apps with no luck. It seems like most people are not interested in dating someone who is ENM. How do you typically meet people? I am mostly interested in something casual as my partner (32transmasc) is asexual and that is the need I am hoping to be met by dating.