No specific recommendation per-se, but I can guide with:
looking at F-droid packages, in the first place to narrow down decent candidates
then inspecting the source code of the select project by checking: commit history, if releases do export an .apk, seeing if the project is still alive (frequency of the updates, repo’s issues)
tbh on iOS and WatchOS support this seems to be the least evil option of many
all of them I’ve seen based oof the privacy nutrition labels were outright alot more invasive than it.
If there is even a good alternative im open to it but I doubt