But still, once i follow these steps, there must be a kind of exercise which can help me to lose fat in that area.
So, which one do you think is the best for achieving this goal?
There are three good ones you can count on.
1) Heavy resistance training. Most likely you are doing it now. Do big compound exercises atleast once per workout, and maybe take more higher volume (6-12 reps for 3-5 sets) with lower rest times along as accessorial exercises. Try supersetting too. There are some circuit programs you can do after the main lifts also. But the point is that resistance training will cause you great amount of fat burn afterwards. It will raise your metabolism, the muscle will grab energy and nutrition from where ever it can, and you will lose fat.
2) High intensity interval training (preferrably anaerobic). Yep, it has pretty much the same effect as resistance training, it will elevate you metabolism and burn fat for energy for several hours after working out. The optimal is a 30 minute workout, with about 20 minutes of it work sets. In short, do sprints. Like 15-30sec high intensity, then rest 0,5-2x the worktime, which is anywhere between 7 seconds and one minute depending on your set. Do this for 10 or so times and you got yourself a workout. Hill sprints count as even more effective.
3) If you still got time, there is just any cardio that will burn fat. It's just not that effective and has it's risks of backfiring. A brisk morning walk or jog before breakfast is recommended. Some still like to run these one hour steady-pace jogs, but prioritise the two above first. Aerobic exercising is still good for your heart and lungs.
BUT remember, without a proper nutrition, exercising along won't cut your fat off. By combining proper eating with exercising you'll get what you want. Just be patient. This will not happen over two nights.