Americantall.com is where I’ve been buying from recently. Do you have another option? ’ I’m 6’4" and 200 pounds. A typical large is too short. XL and XXL is wider and not longer. I need a place to order a Large X-Long.
Take a holiday in the Netherlands, visit any clothes shop, enjoy the length. Source: Am a 6’4 2xl Brit and shopping in Amsterdam is sartorial paradise.
In the UK, Jacamo are excellent.