Tooth #29 broke partially, the dentist saya I need a crown, but to do that I need a root canal a post, crown lengthening and the crown, is this worthy? Should I get it pulled? Please advice

The only problem with "just getting it pulled" is that there will be a hole where once a tooth was and being #29 it could possibly be in plain view when you smile. But of course this is a purely esthetic issue and nothing more, Having one missing tooth can cause others nearby/upper counterpart also to lean forwards, backwards, sideways, extend become elongated. As there would be nothing there to hold them back. I personally would recommend taking the root canal and post + crown option.