Originally Posted by
southernfox
...it's drilled. That's why I'm asking in the first place
Just go to a local bike shop. They should have new and used options in stock as well as levers. You may need short or long reach brake calipers.
You'll want a non-shifting lever. A shifting lever from a road bike will work (if it's free). But don't pay extra $$ because you won't need to shift.
Have a look here for options. This is a common thing in the street fixed gear scene.
https://www.retro-gression.com/colle.../brakes-levers