Pacifier for baby or no?

I’m really conflicted about whether to start using a pacifier. I exclusively breast feed but my baby is also sort of using me as the pacifier…

I’m worried if we use one he won’t get fed enough, because he’s tongue tied the nurse said that could be why he needs to feed so frequently.

I also saw the studies about the reduction of SIDS and mentioned this to the midwife and she said although it does in young babies slightly; it increases it after 6 months or something??

I’m just so conflicted. It would make things easier but I don’t want to be selfish

Any advice? Would you go for it?