Suggest an alternative to

webauthn

Web Authentication: An API for accessing Public Key Credentials

Why do you think that https://github.com/github/SoftU2F is a good alternative to webauthn

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with webauthn. Optional.

A valid email to send you a verification link when necessary or log in.