I like Authy.
Works great, and I can recover if needed. Might not be the most secure, but wrecking your phone and losing access to 30 accounts because the phone was the only thing providing 2FA isn't very fun.
What I've done is set it up on a couple devices, set them as allowed devices, and then uninstalled. If I lose my phone, I can set it up on my computer again, and it'll allow me to login.
No other system is allowed to have access because I have all other devices restricted. Works great.
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