Trying to find a basic mid-gray suit and a few blazers, but I'm impossible to fit: 35" chest, 5'8", 135 lbs. J. Crew's 36S is a bit too big in the shoulders. Suit Supply goes down to 35R but it feels even bigger in the shoulders than J. Crew. Likewise for H&M's 36S. Any suggestions for an off-the-rack solution, or is M2M/bespoke the only way I'm going to get a well fitting suit in these obese times?

Please don’t take this the wrong way: Ralph Lauren Boys.

They come highly recommended.  I poked around a bit, and some of the suits are 100% wool, made in Italy.

Brooks Brothers Boys has slightly cheaper options, but I suspect they’re wool blends.

For reference, here’s a similar question I answered in the past.