Merrill Edge is a great option if you want a strong trading platform with great access to research and data, integrated with Bank of America.
Consider Alto if you want to diversify your retirement assets with alternative investments. Alto CryptoIRA offers more than 150 coins, while Alto IRA offers alternative investments including private equity, securities in fine art, and other non-public securities and pre-IPO shares.
Merrill Lynch
Self-Directed
AltoIRA
Self-Directed