Foley-Belsaw is still around.
https://foleybelsawlocksmithing.com/ The old Foley Belsaw sold off the locksmith training part of it to one of their employees, and he is running it now.
LVS is, well, based on videos. Foley Belsaw is based on a set of booklets. More material in Foley Belsaw, but some people would learn more from videos. I took the LVS course when it was on sale a few years ago, and have read the Foley Belsaw course binder.
Big question is if someone wants a piece of paper or not. I do not think a locksmith company would be impressed with either course, but in some states with license laws one or the other course may be recognized. As a random example, Tennessee recognizes both if one comes on as an apprentice to a company.
If you just want to learn, could just buy an old Foley Belsaw binder, although their prices on eBay have been kind of high as of late. Collections of Locksmithing Institute booklets are good as well. The Foley Belsaw Commercial Locksmithing books looks like what used to be their continuing education book, which was useful. Regardless, I think the best thing to do is to gather an assortment of used door knobs, mortise locks, lock cylinders, etc., from thrift shops and such and learn by doing. If you want to learn safes, check out local auctions--I picked up one for $1 a while back (locked, no combo).
Unless something has changed recently, neither course has anything very useful about automotive locksmithing.
