I don’t know if this helps, but when I buy online, I buy from Lands’ End.
Their quality is almost always decent, and they have online tailoring for a lot of items. Their return policy is basically no questions asked, even after they’ve altered something for you.
Some of their “work clothes” (I work in an office) such as long-sleeve cotton dress shirts are way better quality and are more durable than what you’d get off the shelf in the men’s department at a department store. I wear odd sizes that I rarely find at a department store - with them I get everything fitted to order for about the same price.
What I generally do is order one. If it fits right, I order five or six. If not, I send it back and get another with the fit adjusted until it’s right. I’ve never had a problem with their consistency once I know what the size is and my wife can then order more and know that it will fit me.
Just my experience. I’ve been a customer since before the Internet was an option for ordering.
I suspect getting out of the failing Sears empire is quite beneficial for them also.
I’ve found that Land’s End and LL Bean have both gone downhill in quality. Only Orvis has top-quality clothes at something like a reasonable price. There are other catalogs that have very high prices. I’m sure their stuff is very good, but really, $600 for a pair of pants?
Lands End is my go to for basics. Great store