Yes, you can use Coinbase but in order to do so you will need; IRA Checkbook control, which is essentially what Coinbase provides anyway. Without that you’re restricted to the platform or fund offered by your IRA Custodian. Here’s an article with more information:
The code only restricts two investments in an IRA: Life insurance and collectibles.
You also need to be aware of the prohibited transactions in IRC 4975. There are only 6 “self-dealing” transactions to familiarize yourself with but violating them will result in a taxable (unless it’s a Roth IRA) distribution of your IRA.