Maybe not the prettiest, but a little cleaner than it was when it began. If I had it to do over, I might use a small 9.5" rack if such a thing existed. Originally I had the Netgear and patch cables in a Square-D circuit breaker box but it seemed unnecessary and a bit cramped with no air flow. I then added the Firewalla and moved the fiber over with all the other gear. I have room to expand but I don’t think there is anything else I will ever need to add to this location. I have another networking rack more centrally located in the house. There was also tons of coax here but I coiled it up and tucked it away in case it is ever needed again. I originally wired my house with 2 network drops and 2 coax drops to each wall outlet. This spot services 6 drops to my office, two lines to my main networking rack, and the main internet connection.
10 inch racks are absolutely a thing :)
There are patch panels (usually 8-10 RJ45s), PDUs, shelves, all the usual accessories you can get for a 19" rack, just smaller.
I was able to find a few 10" rack items, but the selection is very limited and the prices are about the same as for 19" accessories. I would replace the three patch panels with a low profile 10" 3u open wall mount rack if I found a setup at a reasonable price.