I have a pair of fire-rated Thorogood boots for controlled burns and they are 100% awful. Terrible fit. Honestly the worst pair of work boots I've ever owned.
If you want something in that style, though, Irish Setter makes a very similar boot. The uplander, maybe? I can't remember the exact name. Coworker is on his second pair and loves them. Hard to go wrong with Irish Setters.
Tom is right about the custom made boots. You can't beat the quality and fit. It's just a matter of whether or not you want to pay that kind of money. I've got a pair of Wesco boots for wildland firefighting. They are a custom boot and were about 500 bucks if I remember right. Crazy expensive... but superior quality.
For "everyday" work boots without a heel, I would look pretty hard at the Irish Setters.
** Edit... it's the Irish Setter "Wingshooter" **