There are lots of options, but the ones I finally landed on were these:

For my desktop: https://www.amazon.com/dp/B09224KKPV

For behind my desk (which doubles as a recording space, so the disorganized cables bugged me): https://www.amazon.com/dp/B014BMTQ34

I also used a lot of Velcro cable ties, and this monster of a power strip which fits inside the behind-desk box: https://www.amazon.com/dp/B099NB3TTY