Usually, Etsy has controllers sold by boutique stores based out of people’s homes, but occasionally, you can find mainstream controllers there.
The Praetorian Centurion is one of the widest fightsticks in the world, and it's a spinoff from the bestselling Qanba Obsidian 2.
Wooden Pan makes wooden controllers in Austria, so if you're nearby or like its controllers enough, you can request long distance shipping!
The Huevos Puncheros is a case that is made of leftover acrylic and some filament. Its wrist rest is magnetically detachable!
RetroGameBoyz makes retro game controllers, including arcade sticks, which can also be used for modern fighting games.
If ergonomic controllers make your hands too upright, consider the Maestro that only tilts your hands at a slight angle.
The Brawlbacoa is the quintessence of customization, allowing for a lever or leverless layout, art or engravement, and a travel-related addon.
Grafix Arcade makes MAS replicas in big and small sizes with a lot of customization options to match your needs.
This Deep Sea CM enclosure looks like a combination of the BnB and 4TW. It can come in DIY or preassembled format.