A 30-year treasury offers 5% and A-grade corporate bonds offer 6.5%. You don't need to exploit essential services for the other 50bps.
[0]: https://fixedincome.fidelity.com/ftgw/fi/FIYieldTable?popupM...
[0]: https://fixedincome.fidelity.com/ftgw/fi/FIYieldTable?popupM...