I have muffin top, I know, hard to believe (not). It's the curse of most H shapes I think as we have shorter waists usually and we put weight on first around our waist so it doesn't take much to make a muffin top. There are many 8, V and even some A and X shapes who also have this common problem.
There are four things I do to help me conceal my muffin top.
1. Wear mid to high rise jeans and trousers.
A higher rise will have your muffin tucked in rather than spilling over the top.
(and not the shapewear Spanx style pant as they create more muffin top!)
Shop for Shapewear Cami's
3. Wear a wide belt over the top of my jeans
The wide expanse of leather hides my muffin and conceals the top of the jeans
Shop for Wide Belts
4. Wear a Blouse
Wear a blouse or looser fitting top, you can tuck and blouse if the shirt is too long proportionally for you to be flattering.