Ain't gonna be much, if anything, on the web and I doubt there'd be many photos out there in general.
Anyhoo, if you still wanna search around, try looking up the following:
YF-113 (US designation for USAF operated MiG-23 and possibly MiG-27 Floggers. If you see any reference to a 'YF-113G', specifically an article from AvLeak (Aviation Week & Space Technology), this is apparently an error. The YF-113G was allegedly a separate black-project.)
6513th TES 'Red Hats'
4477th TES 'Red Eagles' - Both of these units were involved in operating MiGs, although the 4477th may be the better bet for Floggers.
The MiGs were operated from Groom Lake, so you may want to go the Groom Lake / Area 51 / Tonapah route as well.
Although Area 51 / Groom Lake is surrounded by the Nellis range it's believed by many to be under the control of the Flight Test Center at Edwards. I doubt you'd find out much by that route, but as a researcher I've learned the value of following any and all leads.
Good luck, you're gonna need it!
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