The one from CS6 perpetual license should work. I never use it myself, and I'm not touching the subscription model, so I can't tell you that it does.
I have no plans to log on to the Adobe forums after June 16 at midnight.
There is no TWAIN plug in for 64 bit system, and probably will never be one. The 32 bit version will work, but many just buy VueScan and be done with it.