Unpopular opinion:
When doing The Good Place AUs, it’s easy to see the similarities between Michiru and Tahini and go with it, but Rei actually slots into the “working to be good to beat everyone else” even better, and from there it opens up a nice inners-only situation, as Mina and Ami are obvious choices for Eleanor and Chidi, respectively
Mako as Jason is less direct, but god just imagine her trying to keep silent while the lie eats away at her and Rei is trying to strong arm her into talking, and then when she joins up with Mina she’s just like CAN I BAKE SOMETHING PLEASE, and Mina writes her off as simple
And for bonus points, Michael is Queen Serenity
ALTERNATIVELY, Usagi slots pretty well as Jason, and Mako just goes to real heaven where she unequivocally belongs