I love the locked tomb books (Gideon, harrow, Nona the ninth, with Alecto the upcoming one). A cheeky description would be lesbian necromancers in spaaaace. I really really like the dark star trilogy as well, but that is harder for me to throw out recommendations for, it can be brutal. A lot of gory violence, and a fair share of sexual violence as well. Black leopard, red wolf and moon witch, spider king each have separate narrators with their own distinct histories, but then their stories intertwine around the same mission and its consequences, and their tales are relayed to an inquisitor who is interrogating them. They are both unreliable narrators and they HATE each other, but there may be more to it. White wing, dark star will be the last one, with a third narrator, and will be more horror focused I believe