This is a budget controller that is available in many variations and is a decent option if you would like to try hitboxes.
The Fighting Stick seems to be a sort of prototype for other Hori fightsticks such as the Fighting Stick Mini and the Fighting Stick Mini 4.
Ipega has graced the fighting game community with a mini fightstick, the Ipega-9136, that is even smaller than the standard mini fightstick, and it does a great job at this novel type of product.
The Martial 5in1 Arcade Fight Stick is yet another white-label arcade stick, but it may capture your interest regardless.
The Yusha Fight Stick is a mini fightstick that was specifically designed to dock the Nintendo Switch.
The Arcade-C-1P is a fightstick with the simple goal of running Raspberry Pi games while packing nifty perks, such as built-in speakers.
The F500 Elite brings you the same goodness you may have derived from the vanilla edition, but Sanwa parts are included with full force.
This is an all-keys controller with keys that are straight instead of being slanted, but you can also request different layouts.