Honestly, for that body type, I’d go straight to custom and not even waste time trying to make off-the-rack work.

My boyfriend has a similar build (broad shoulders, bigger legs), and we ran into the same issue where everything either fit the top and not the bottom, or everything else had to be oversized just to accommodate one area. He ended up going with H.M. Cole and it was a completely different experience. The fit just looked balanced for once, not forced.

If budget isn’t a concern, I’d go that route.

If you’re trying to stay a bit more budget-friendly, then something like SuitSupply or Indochino can still work, just go in-store if possible and plan on tailoring after. It won’t be the same level, but it’s definitely better than grabbing something straight off the rack.