I started with squats, 5 sets, 10 reps with incrementing weight. Then I would follow that up with 2 sets of lunges, 10 reps each leg. I used dumbbells for added challenge.

Once those alone stopped destroying my glutes, I added various exercises like straight legged deadlifts, barbell hip thrusts, wall sits for my quads, Bulgarian split squats, etc. I also added booty band exercises to further work my glutes. I don't do all of those in one session.

For my core, I like isometric exercises like planks and its variants. Another good one is to hold a single dumbbell in one hand and stand up straight for 45-60 seconds, then switch hands. Repeat that 3-5 times each side. That will help with pulling in your stomach which will further accentuate your booty & leg gains.

These aren't all my exercises (I didn't mention upper body or cardio), but they should be a good start for a nice femboy figure.