Complete list of mechanisms that automatically send authentication information in browsers

I am trying to create a list of integrated mechanisms that automatically send authentication information or automatically indicate the user to provide them in browsers.

So far I have

  1. Cookies – send cookies based on domain / expiration, etc.

  2. 401 WWW-Authenticate: Negotiate (SPNEGO / GSS-API) – for whitelisted domains (needs browser configuration) generally for Kerberos / NTLM

  3. Client certificate

  4. FIDO U2F (in compatible browsers): requires users to take an action when asked for a challenge

  5. WebAuthn (still in development, similar to the previous one)

  6. And, obviously, also the basic authentication (401 WWW-Authentication: basic)

Is there any other mechanism to add to the above? (I'm excluding SAML / OIDC / OAuth since they do not have any native support or special treatment for what I know)