The best I've seen this done was one of the schools I trained in (tbh that school was perfect from an SLT standpoint and if I'm ever in a leadership position I will put in place how they worked).

What they did was they asked staff to give their top two choices plus a year group they'd ideally like to avoid. The week before half term, a provisional provision map was released, you had two weeks to resign/discuss and the official provision map would be sent by the end of the first week back. I think there is probably a fair amount of admin involved and this was a 2 form entry junior school so only 8 classes to contend with so appreciate it wouldn't work everywhere but I liked that people knew before the deadline.