This is an underrated pairing in the FE franchise imo. About time they show up here. They both have great convos in the fe12 in which Minerva admits Palla is the one she trusts the most.

They also have a great Ao3 series called Princess of Dawn by Solrosfalt. It recontextualizes the entire Fire emblem archanea saga of games where Minerva and Palla are primary protagonists. Great world-building and characters throughout. Highly recommended.