If you prefer to buy something FDIC insured, you can buy CD’s through your brokerage. You can pick them from whichever banks pay the most interest and you can also sell them early on the secondary market rather than paying an early withdrawal penalty.
How do you access the secondary market for selling CDs early? It doesn't appear to be an option offered by the bank.
I haven’t done it, but here is what Schwab has in their FAQ [1]:
> While we can't guarantee there will be a market for it, we'll help you sell the CD at the current market rate by requesting bids on your CD and contacting you with the highest one. If you decide to sell, you'll receive the bid price plus any accrued interest. There are no guarantees that you'll get what you originally paid for the CD.
[1] https://www.schwab.com/fixed-income/certificates-deposit