The most common une is Google, simple to use, does not fail and will install in the most common platforms. Anything else can be risky, except perhaps the Microsoft system that is more corporate oriented.
I agree google is one of the safest 2FA validation authenticator for me very user friendly and I'm confident it is bug free since google is one of the most respectrd app developer in the internet industry. i dont want to give a try for other developer specially for not known one I don't want to put risk in my account and wallet as my investment are there.