Appetite regulation works pretty well for most people. I've read somewhere before that most permanent weight gain occurs around holiday time (ie massive surplus) and that's only a few lbs a year.
Just general good eating habits. Sufficient, quality protein ideally spaced between 3-5 feedings, carbohydrate to fuel training, and a variety of fats for balance.
Acutely, based on a higher TEF. Also the extra carbs could promote a higher training intensity which might burn a few more calories, but for the most part it's not going to do much except perhaps...
You look somewhere between 16-20%. That said you have a decent muscular base and will look pretty good if you lose a few lbs. If it were me I'd start more conservatively maybe in the 2500-2700 range...