- a Yubikey - a sparingly used email account with no 2FA, just a very long password
2FA through the sort-of-secret email account lets me get back into Bitwarden (and thus everything else) even if my house burns down and I lose access to all of my yubikeys. And auth on a device that doesn't easily support yubikeys, like older iPhones.
2FA is very useful, but highly overrated. If you have a sufficiently long and complex memorized password (and the email platform actually lets you create one that's properly long, 40+ characters), it's unlikely that you'll have any problems unless you accidentally share the password somewhere.
Of course I feel like all my my precautions are moot when my bank and CC company force SMS 2FA. But I haven't found any with superior security schemes anwyway.