Short story:
For my riding boots I use Lysol and a boot dryer and it helps.
HIGHLY recommend changing your socks. I noticed what makes the biggest difference is what type of sock you are wear (material). Throw any/every cotton sock in the trash or more specifically, your riding socks. All cotton does is hold in the moisture, doesn't allow your foot to breath, and allows bacteria to breed (partly the cause of stink). Look into Merino wool socks, specifically from Darn Tough. Life time warranty and they work.
The higher the merino wool content the better. It is naturally anti-microbial which helps with the stink.
Padded over-the-calf light cushion
https://darntough.com/collections/m...ver-the-calf-ultralight-1?variant=30180907463
Padded over-the-calf cushion
https://darntough.com/collections/m...ded-over-the-calf-cushion?variant=30180606407
Long story:
I did a lot my own "testing" with different materials, cotton, "dri-fit," and merino wool, when I was planning for an elk hunt in 2015. I would hike or run 16-20 miles a week and my hiking involved 35-55lbs in my back pack. As a test, I wore one pair of my no cushion running socks 7 times before they ever started to even smell a little bit! I wore them hiking in Colorado, Wyoming, southern Ohio, hunting, running, every day socks, etc. I can't tell you how much I spent on them, but I have at least 15 pairs of merino wool socks now. And my shoes, boots, etc. do not stink.
On my hunts, I wore each pair of my hiking boot socks at least 3 times each and they did not stink after 4-8 miles each day in the mountains running and gunning.
You would think your foot would get hot in a wool sock, but they don't. Your foot is dry (which is odd for a high intensity sport). I highly recommend Darn Tough socks. I have tried FITS brand socks and they wore out in less than 2 years! Going on my 4th year with 5 pairs of wool socks (of which I wear at least 2 times a week) and they are in great shape. Sorry for the long post. Note I am not affiliate with Darn Tough socks, but I am a firm believer that wool is the way to go.