Today, a niche but passionate community of collectors, preservationists, and nostalgic fans searches for a specific digital Holy Grail: the
Buy the official Japanese DVDs. They are expensive (sometimes $300 for 50 episodes). However, you can rip these yourself to create the perfect raw—highest bitrate, no subtitles, original audio. This is the only legal way to guarantee a 10/10 raw file.
Discord servers dedicated to "Lost Media" and "Anime Raws" are better than Reddit. Users there share MEGA or Google Drive links privately. Do not ask for "the entire series"; ask for specific episode numbers (e.g., "Looking for raw of Episode 452: The Magic Cloak").
You cannot find a single magnet link or .txt file that leads to all 1,787 episodes in pristine, untouched quality. That holy grail does not exist, likely never will, and is technically impossible given the degradation of early broadcast masters.