I like G.Skill a lot because it seems to be universally compatible, and have a system that needs either 16Gb or 32Gb in two slots.
Must be known to be working well/well tested.
LMK what you have please.. I'm in Tauranga.
I might have some available. From memory is HyperX DDR4.
Pulled 2x 8GB from a Dell Alienware PC a year or so back. Those systems were very particular with which RAM they would support, so I kept the old ones in case any future BIOS updates rejected my upgraded RAM as incompatible. They've been pretty solid lately though so I don't really need the original RAM anymore.
Will get details when I get home later.