There are many ways to decrease the amount of fat both surgically and non-surgically but only a tummy tuck can remove stretch marks permanently and definitively, and correct significant skin and soft tissue laxity. Muscle plication, which is also commonly performed during a tumm tuck will also help with the contour and profile of your abdomen by correcting excess abdominal wall laxity.
All the best,
Lipomassage/Mini tummy tuck
Without pictures of your abdomen is not possible to give good advice. It would behoove you to seek personal consultation with a well trained/experienced plastic surgeon. The quality of the advice you get is critical to help you avoid wasting your time and money with procedures that don't achieve the results you're looking for. Be careful!