Help choosing an AMD CPU

My current build:

• ⁠MSI X670E Gaming plus wifi (AM5) • ⁠AMD 7700X with a thermalright peerless 120 cooler • ⁠4x16GB Corsair DDR5 6400 RAM (just upgraded from 2x16GB) • ⁠ASUS 5070 TI 16gb (just upgraded from 3060TI) • ⁠Corsair RM750E PSU

I did this build a little over a year ago, and it has been mostly fine. I've recently got a 3D scanner and ordered another 32GB of RAM to go with it since I found a "decent" deal on it. Shame on me for not doing more research in the beginning as this is my first AMD build, but I've just discovered the RAM I have isn't too fond of the 7700X.

All of my sticks of ram are the same model. I really need at least 64GB of RAM, but the memory controller in the 7700X can't handle it, so my speeds are trash. Sitting around 3000Mhz for stability. With the 3D scanner, I'm getting near 100% CPU utilization, paired with the RAM issue I'd like to upgrade.

Can anyone recommend an AMD CPU that would be able to make use of my current RAM? I'd really like to avoid buying 2x32GB sticks of RAM with the absolutely RIDICULOUS ram prices right now. I've been looking at the Ryzen 9 9900X.

I'd like to stay under $450.

Edit: I decided to just give in and go with a ASUS X870 tuf gaming, 9900x, and trident 2x32gb ram