If you have money that you won't need to access for a year, I bonds currently pay close to 10%. 10K a year limit on what you can put in.
That’s not an EF or an SA.
They said they were financially illiterate. I read that as them not even knowing what they don't know.
But you do you, bitcoinmoney.
There is no high yield savings account in US.
Definitely not for most of the past three years. Rates only started creeping up in the last few months and even then, “high yield” is a hilarious way to label the news rates.