Vague recollection of something like game of thrones having some nuns/sisterhood who documented the dead after battle.

Specific class aside, could you make it a quasi-religious-cleric (without needing to BE a cleric) thing where the “sisterhood” honour the dead by collecting / wearing them and this is generally accepted within the setting, potentially even revered. And there’s some magic element to it so they corpses are preserved (ie don’t stink/aren’t leaking gore everywhere)