people who lift weights/good at fitness answer please

you CANNOT spot reduce fat from a singular point on your body. If you gain fat, which is impossible to avoid in a caloric surplus, you gain fat evenly across your entire body. You many gain fat in particular areas more than others, but that is due to genetics and cannot be changed. For example, i store a lot of my fat in legs and i cant change that. you said you want to gain muscle not fat. This is possible but gaining muscle happens quickest in a caloric surplus. You seem to be a beginner so if you stay on a structured workout program, eat enough protein, get enough sleep, even if you are at maintenance calories and a slight calorie deficit you said gain some muscle, and if you focus on muscles you want to gain muscle on by training 2/3 times a week you may gain more muscle there.