Indochino. I have an indochino suit and a Mr Mac's suit. I rarely wear my Mr Mac suit as I don't like the way it fits.

The indochino suit is custom made. You do the measurements yourself, and enter them into their website. Then you pick What kind of suit you want. They have a bunch of choices and then they make it for you. You can even pick what the lining of the suit looks like. It's kind of fun.

They have videos that teach you how to properly measure yourself.

I've had mine for several years and it's still looks great.

There are often promo codes to get some discount. But I think you can get a made to measure suit for less than $300.