I'm short and not remotely slim and, in recent years, I have worked in positions where well-cut, sober garments best met my professional needs.
These days, I get my jackets, suits and trousers made to measure, in other words, I mostly wear bespoke tailoring.
Now, I will admit that I have always liked good tailoring, and, even in my teaching days, I wore well cut tweed and wool garments, good commercial brands, such as the German company, Gardeur. So, even twenty years ago, my suits cost a few hundred pounds, euros, as did my jackets, and trousers.
But, they drape properly on me, and fit well.
My shoes are almost all by Church's, and I get them made to measure, and then resoled as needed.
I will add that the tyranny of fashion (this size zero nonsense) plus the current preferences for fitted garments, means that it is difficult for someone such as myself, who insists on good quality natural fibres, to find something comfortable, (not tight), that fits and sits right on my build.