What RAM Ryzen9

Been away from the hobby for 15 years and need some advice on what RAM to get for my new PC build.

Goal is to build a water cooled rig that is as silent as possible. It's going to on 24/7 and live in a bedroom so I dont want to hear it wizzing away at night.

I've never done any OC before but my mate helped me pick a setup that should allow me to learn/try if I want.

I'm leaning towards 32GB of either 4x8 or 2x16 @3600hz. Thinking CL14 or CL16. Don't care for RGB so don't want to pay for it if I dont have to. Million Dollar question, what RAM should I get?

Here's what I have so far: Fractal Design Meshify 2 XL case Be Quite Dark Power 12 850w Titanium PSU Asus Crosshair VIII Dark Hero, EK Monoblock Ryzen 5900x CPU 2TB Samsung 980 Pro NVMe PCIe4 SSD Asus ROG Strix 3060 OC GPU (still looking for Waterblock) 480 radiator with 4x120 fans 420 radiator with 3x140 fans EK reseviour/pump Windows 10 Pro 64bit