I bought a pair of over-glasses ski goggles by Smith, and have been happy with them. Once I put them on, I push my eyeglasses all the way forward into the goggles cavity, i.e. down my nose slightly from where I'd normally wear them. That step greatly reduces / eliminates the fogging for me; they may start to slightly fog when I come to a traffic light stop, but never enough to block my vision, and that bit clears quickly once I'm moving.
Full disclosure most of my bike helmets don't work well with ski goggles. My winter helmet is a Bern multi sport. Most use it for biking, some for skiing and other winter sports. It came with a removable goggle strap mount on the back. I had to order the winter liner with ear covers. Because it was designed for goggle use, they work well. I know you invested a lot in your helmets; it might be more difficult to find goggles that work. I tried so many combinations before purchasing the Bern.
It seems regardless I've where I lived there was a weather event capable of killing. Two hurricanes make a quiet day at home, below zero outside, all warm and fuzzy! VVBG!
