There are a lot of healthy foods out there to choose from. Think of foods in relation to the food groups. Get a variety of fruits and vegetables, whole grains, lean proteins, low-fat/fat-free dairy, and healthy fats in your diet.
Pretty much all fruits and veggies are great, so it's hard to go wrong there. For whole grains, that would be things like brown rice whole wheat pasta/bread, popcorn, oats, quinoa, etc. With lean proteins, try to include foods like chicken/turkey breast, eggs/egg whites, seafood, protein powder, tofu, beans, and lentils. 1% or skim milk/cheese/yogurt/cottage cheese will be the best option for dairy. And then use healthy fats sparingly, like plant oils, peanut butter, nuts or seeds, and avocados.
We suggest to include the foods and food groups above into small and frequent meals/snacks throughout the day. This should help with keeping your hunger controlled and prevent cravings and overeating. Try to generally avoid highly processed and packaged foods. Stick to things that are fresh and require you to prep/cook them.