Atmosphere (Sun, Sky, Clouds, Fog)

Physical Starlight And Atmosphere

Pure-Sky Pro

Fluffy Clouds Planes

Procedural Sky System

Moving Skies Addon

Aviation Skies Lighting Addon

Real Cloud Generator - Vdb Clouds Library

Cloudscapes V2 - Hyper Realistic Vdb Clouds And Explosions Collection

Real Clouds Free Blender Addon

Atmospheric: Smoke Elements Add-On

Volumetric Clouds Generator

Aurora: A Northern Light Generator

Beautiful Clouds

Fog Planes Addon

Alt Tab Easy Fog 2

Procedural Clouds Shader