There are relatively little direct distribution in the annuity business when compared with other lines of insurance.
The universe is narrowed further when throwing-in the A++ AM Best rating.
Let's start with listing some companies that fall under the strong financial rating:
I think it would make sense to inquire with the following companies regarding direct distribution:
- USAA Life
- New York Life
You can also take a look at the Vanguard annuity platform for what might be some lower cost purchase options.
Hope this helps.