LED external flash for smartphones?

I am looking for a compact external flash (for Samsung Galaxy S20) that has a similar effect on photos as the 3 LEDs flash had of the Lumia 950 XL. The 950 XL keeps somewhat realistic colors when using the flash in contrary to most smartphone camera’s. I always though this was due to MS camera postprocessing implementation, but recently I read that it was due to MS using 3 types of flash LEDs on the 950 XL (1 white LED, 1 yellow LED and 1 amber LED). The flash is also much stronger than on my S20. Since they hardly make phones anymore with good camera + flash, I though maybe the best approach is to just buy an external flash. Does anyone have any experience with them and know if they still retain the colors somewhat?