I'm having really good workouts or exercises for stomach fat?

Sit-ups and crunches: Sit-ups and crunches, as well as low impact cardiovascular exercise (brisk walking, elliptical, cycling...). Good nutrition including protein.

combo: There's no such thing as natural spot fat loss. You need to lose weight in general ; a certain % will be abdominal fat. Eat healthfully ; be physically active. Calories burned must > calories consumed. To tighten ab's do crunches, reverse crunches, exercise ball crunches, pelvic thrusts, lying leg raises, side bridge ; “bicycling” exercise on your back. Engage in regular aerobic exercise.