You could also try reaching out to the author directly if you can find their contact information. They may be able to provide you with a copy. Maybe they removed it for personal reasons like wanting to rewrite it, and would be willing to share it with a dedicated reader.
Search on fanfiction forums or communities. Sometimes other fans might have saved or know where to find the deleted content. However, this can be hit or miss.
One way could be to check the trash or recycle bin of the platform where the stories were posted. Sometimes deleted content might end up there temporarily.
Finding deleted fanfiction stories can be a real challenge. Sometimes, you might get lucky if the author reposts it elsewhere or if there are archived versions on certain websites, but it's not common.
Well, to find deleted stories, you could start by looking at similar topic forums or communities where someone might have saved or discussed it. Also, some specialized recovery tools exist, but they often come with limitations and might not be very reliable.