Currently, the pack developed by the Fire Emblem Texture Collective (often found via the "Dolphin Forums" and the "FE Modding Discord") is the gold standard. This is the pack you want when searching for results.
There is a popular lightweight alternative that uses only a basic ESRGAN upscale with no manual touch-ups. It is roughly 800MB.
Disclaimer: This article is for educational purposes regarding emulation and modding. Always support the official release by owning a physical or digital copy of Fire Emblem: Radiant Dawn.
For nearly two decades, Fire Emblem: Radiant Dawn has stood as a pinnacle of tactical RPG design. Released on the Nintendo Wii in 2007, it remains the franchise's most ambitious entry, boasting massive maps, a sprawling cast, and a narrative split across four distinct acts. However, time has not been kind to its visual presentation. Running at a native resolution of 480p on aging hardware, the epic clash between the Laguz and the Beorc is often obscured by jagged edges, muddy textures, and a blurry haze when played on modern 4K televisions.