First you’re going to have to define what you mean by inexpensive…
Second, it would be immensely helpful if you posted what exactly your needs are and what you expect these lights to do……

A good all around the house flashlight for $20, rechargeable 18650 battery?
Convoy S2

The blf GT was mentioned, but that’s about $200 and is useful if you intend to light up objects up to a mile away….AND is the size of a small plunger…

One light you did miss that might be useful is the blf q8, 4 18650 batteries… The light and batteries run about $65. It is the size of a pop can, lights up your entire backyard and your neighbors….

There’s quite a range of prices, and quite a range of purposes for some
these lights……