How do you add theta?

As a practitioner in the field of cryptocurrency and finance, I'm curious about how one might add theta tokens to their portfolio. Could you elaborate on the process for integrating theta into an investment strategy? I'm specifically interested in understanding the steps required to acquire theta, whether it's through exchanges, staking, or other methods. Additionally, I'd like to know about any considerations or risks involved in adding theta to my holdings. Your insight would be greatly appreciated.