DDR5 6000 CL30 is overall the best choice.

Honestly, after years of building these things, I’ve learned that raw speed isn’t everything if your system is throwing WHEA errors or crashing when the room gets warm. When I was setting up a similar 14th gen build recently, I focused strictly on the QVL for the motherboard to ensure the signal integrity was solid. I've found that Kingston Fury Renegade or even TeamGroup T-Force Delta RGB kits tend to be super reliable when you're looking for that sweet spot where the XMP profile actually works without needing to manually tweak voltages for days. Basically, just remember that the IMC on these chips can be a bit finicky at the extreme high end. My quick tip: always stick to a 2-stick kit rather than 4 to keep the load on the memory controller manageable. Tbh, a stable system you never have to troubleshoot is worth way more than an extra 200MHz you’ll never actually feel while gaming. Reliability-first is always the veteran move.

Look for DDR5 kits with speeds around 6000MHz and a low CAS Latency (CL30 is ideal). Reputable brands like G.Skill Trident Z5, Corsair Vengeance, and ADATA XPG Lancer are excellent choices.