Not really what this forum is about, but in my experience it’s way better to go to a country like Turkiye for two weeks, get a tailor to size you up and assess which fabrics you like. Then just let him make two of everything. A two piece suit of s120 wool will run you about 200-300 dollars. You want to get high class fabrics like cashmere and silk it won’t cost you very much: 300-400 bucks.

A suit is not going to last forever if you wear one to work every day. To get longevity out of your suits you should have many of them.