RebelWraith
Polymath
If you have the factory LEDs in the foot well or under the seats you can purchase different color or cool white LED boards from here:
www.paragoptics.com
Their LEDs are slightly brighter than stock.

Front Footwell LED Boards | 5th Gen Ram (2019-Present) — Paragoptics
Are you tired of the factory yellow LED footwell lighting in your new Ram yet? Look no further, we have the solution. Our plug & play footwell LED boards are a significant upgrade over the factory ones and will give your truck the modern touch that you are looking for.