To help you find exactly what you are looking for, let me know:
Years later, homesick and nostalgic during a rainy season, Riko remembered the note. She opened her laptop and typed, almost without thinking: Doraemon movie Internet Archive.
Source for movie history: List of Doraemon films and specials doraemon movie internet archive
The parent companies of Doraemon (Shin-Ei Animation, Shogakukan, and Toho) own the intellectual property rights to these movies.
The Internet Archive (archive.org) is a non-profit library that hosts millions of free books, movies, and software. For Doraemon fans, it is valuable because: Legacy Preservation To help you find exactly what you are
Nobita in the Wan-Nyan Spacetime Odyssey (2004) – The emotional finale to the classic era. The New Generation Era (2006–Present)
Many of the classic 2D-animated Doraemon films from the 20th century never received worldwide DVD or Blu-ray releases. The physical copies that do exist are often out of print, expensive collector's items, or locked to specific DVD region codes. Digital preservation on the Archive ensures these pieces of animation history do not fade into obscurity. Navigating Doraemon Content on the Archive The Internet Archive (archive
You will find the original Japanese releases, crisp and clear. But more importantly, you will find the "artifacts." There are uploads of the Cantonese dubs that aired in Hong Kong in the 90s, their audio slightly muffled, carrying the static of a VHS tape. There are the Spanish-language versions that captivated a generation in Mexico and Spain. There are the "Speedy Video" dubs from Southeast Asia, infamous for their rough translations but beloved for their charm.