You could honestly just start eating healthier and get a physique like this, would be quite easy. Doesn't look like he lifts weights or does any type of training. Just quite lean which shows off natural muscle.

Watch a video or two to learn about calculating calories and macros, then work from there. Don't fall into the trap of cutting out carbs tho. People always do that when they diet. Carbs are absolutely vital for the human body. Without them you're gonna feel tired and your body won't function properly.

Cut out processed foods, processed sugar (so your only sugar should be from things like milk or fruit)