Um, wondering why you’d need an annuity with millions in the bank.
Diversification for tax purposes
Many years ago, I got rates here: Immediate Annuities - Income Annuity Quote Calculator - ImmediateAnnuities.com
Also, Vanguard had a portal (they redirected you outside Vanguard), but an earlier poster said that’s gone.
Note that deferring SS benefits amounts to buying a CPI indexed life annuity. Back when I cared, I thought Social Security had better rates than any private insurer.