Any luck at what? Finding universal fog lights or pictures of MX6's with them?
I installed a set of universal fog lights on one of my 88 626GT's years ago, last year I picked a similar set at 91% mark down, they cost 7$, didn't need or want them but couldn't pass up the sale, haven't used them on anything yet.
The 626 and MX6 bumpers are slightly different fitment but have the same shaped openings in the front, the left and right openings are kinda square and the perfect spot to mount fog lights, with the car jacked, looking up at that spot you have straight up access to the inner bumper, drill your mounting holes into the inner bumper, mount the brackets to it and the lights to the brackets.
Personally I think rectangular fog lights look the best with the headlights and pumper shape, round and oval fog lights wouldn't look right on these cars.