I have no experience with any of the flashlights i’m about to mention but for raw power on the cheap i’d be looking at a direct driven 3V XHP50.2 or two, along the lines of the Astrolux C8, FT02S, EA01S etc
(Funtastic’s video review to give you an idea)
Or the JKK70 (single XHP70.2) or JKK80 (quad XHP50.2), or even the JKK76 SFN55.2 version if the 33000 lumens for $93 is to be believed.