Hello! There are a multitude of options you can pick when buying keycap sets and switches. Cherry reds are a nice switch, when paired with a good lubricant like Krytox 205 they could deliver a nice sound profile. I'm currently using WS Morandi switches, they deliver a smooth and creamy sound profile but aren't as poppy as Creamy Yellows per se. Any quality PBT keycap will work, depending on the profile, it just comes down to preference of aesthetics and what will compliment your build!