: Visit Google Takeout . Deselect all services except for "YouTube and YouTube Music" and select only "subscriptions" in the specific content options.
If you are trying to move an entire channel (including its videos and existing subscribers) to a new email, you must use the YouTube Brand Account transfer process rather than just moving your subscription list. youtube subscription transfer
However, Google does allow you to your data, which is the legal and technical workaround. : Visit Google Takeout
This method is more fragile, but if you’re moving between RSS readers (like Feedly or Inoreader), it works seamlessly. You just won’t see those subscriptions inside YouTube’s UI. However, Google does allow you to your data,
: Log into your old YouTube account, open the extension, and click "Collect channel." This saves your subscription list to your browser's local data.