That size and I assume USB-C charging (though you didn't say so explicitly) has very few options. There's the Cloud Defensive Chicro, and... that's about it aside form a couple lights with non-removable batteries.
A little bigger and the options open up some. Accept a battery you charge outside of the flashlight (optionally using USB-C), and the options open up quite a bit. The Acebeam Pokelit is inexpensive, has good color rendering, and about three times the energy capacity of the Microstream.