Use Shaders on Minecraft Windows 10 Edition! (Minecraft Bedrock) - YouTube
Continuum Shaders 1.20 → 1.19.4
The best Minecraft shaders to make your world look better | GamesRadar+
Complementary Shaders lets you have a "Bedrock RTX" profile, giving you a similar experience (reflective blocks like sand and iron block, and amazing water) on Java! : r/minecraftshaders