I’ve started a series of YA novels called the Spring Break Sleuths series, starring a half-Japanese boy, his Jewish girlfriend, a bisexual blackgirl, her afro-latino cousin, a gay* boy, and a trans girl whosolve light-hearted mysteries together, if anyone’s interested.
*He identifies as gay in the first two books. After that he does some re-evaluating and decides he’s pansexual instead.