So I was a little bored and I whipped up this full build on PC Part Picker.
https://pcpartpicker.com/list/p69rdH
It’s a bit different from what I was recommending above, but that’s based on your plan for a white aesthetic build and some of my own preferences. It’s by no means meant to be an exact recommendation, but more of a what is possible build. Being a white build will also raise the price overall because that is not as common of a color.
One key note is the Asrock 7900GRE. It will aesthetically pair perfectly with the Asrock mobo as they are both part of the Steel Legend line and the camo white will offer some accents to break up a basically pure white look. A large dark colored GPU like the XFX can look distracting in a white build. The slight difference in boost clocks are not likely to be noticeable without a frame counter.
One caveat may be RGB controls. I know in the past, Asrock did not do well when it came to RGB controls, especially when it came to mixing with other brands. If you think you’ll want to go with that mobo, see if you can find out the current status of them. If it doesn’t work with the CPU fan RGB, You may be able to use a third party RGB program like Signal RGB or OpenRGB. This actually goes for mixing and matching RGB brands in general, but Asrock was the worst for it. NZXT has a white mobo option as well, but is more expensive.
The RAM may be a bit questionable. The one in the parts list link is mostly a place holder for looks. This specific kit is on the compatibility list for the above motherboard, but is completely absent from the Part Picker website.
The difference will be in the memory timings, which can impact stability if not fully compatible. The 7000 series CPU’s can be finicky when it comes to memory.
I used the Pearless Assassin CPU cooler others were recommending, but ram clearance can be an issue with dual tower coolers like that. Not only are there few white ram options, the options that do exist can be fairly tall. G.Skill is a well respected brand, and also have tasteful low profile designs that help prevent CPU cooler interference issues. It’s an RGB kit in the list, but I can tell you from experience that dual tower coolers can overhang at least one of the ram sticks, making any RGB on it hard to see.
When you go into the individual parts page in the Part Picker list, scroll to the bottom and you can see builds other people have made with that given part. That will help you to start visualizing how the build could look.