For your surgery you may be advised to buy a post surgery bra. You will need a front fastening bra.
All of these bra are suitable with the exception of the Ellen bras and the black sipper sports bra. These can be worn once you have the ok from your doctor breast care nurse.
If you have a larger bust then you will want to have a post surgery bra with lots of support especially if have reconstruction then consider Pamela or the Theraport bra. for added support you can also use a compression belt.
If you have limited arm movement following surgery then a front fastening bra is a great option.