1. Barbell Squats. Possibly the 10-2 position may yield more emphasis on that area, than a regular 12 o'clock position
2. Dumbbell Squats, one handed moreso than two handed, as one handed means holding the Dumbbell between the Legs, two handed, down the outside areas, so one handed should change a little of the emphasis, more to the inner sections of the Legs, directly below the Groin.
3. Adductor Machine.
4. Leg Press
5. Hack Squat
6. One Legged Hack Squat
7. Side Lunges, different to Lunges and Front Lunges, as for example, you have your Left Leg pointing forwards, the Right one pointing sideways, and then you lean into the Right one like you're stretching it.
They should be done with Dumbbells, but the Legs not pointing the same way, may target the area you're talking about, more than Front lunges or regular Lunges.
All those things could potentially do it.