@Lianna93 @missv556 my midwife wasn’t very interested in birth plan last time but useful things to think about beyond the obvious are:
Placenta: do you want it to come naturally or have an injection to speed it up (injection can make you sick sometimes, it made me sick but I’ll probably have it again anyway)
Do you want delayed cord clamping?
Do you want baby to have vitamin k injection? (the alternative is 3 doses orally over a couple of weeks I think, we went for the injection)
What pain relief do you want / are you open to? (gas & air, pethidene, epidural, water birth etc)
Who will be with you?
From my experience last time they’re not really interested in whether you want music or any of the more airy fairy bits!
It’s also worth remembering that birth is unpredictable and while it’s fine to have preferences it’s useful to think through all the possibilities rather than get fixated on it going exactly how you picture it (eg you may find your pain tolerance is better or worse than you expect so have a plan for both)