If you went through the effort to standardize your ToS, it would only be "useful" to a tiny handful of businesses at specific points in their growth trajectory.
Regulations like GDPR are a top-down approach to the privacy component of a Terms of Service (i.e. there are only so many variations to the privacy sections within a ToS that comply with GDPR), but there are so many more components than just customer data locality.
That being said, as a privacy-respecting entrepreneur, coming up with a "user-respecting" (i.e. win/win, legible, minimally-demanding/withholding) ToS is a sizable challenge. It'd be nice to have templates. I basically resort to reading the ToS of companies I respect in similar verticals.