Hello Elizabeth and welcome to our community! When I used to work near the Pantheon, when we had visitors and guests we would often use the Albergo del Sole234 nearby to host them. That's a four-star hotel, however, so it might be a bit too high range, depending on your budget. Another one we used to use, which is a three-star, is Hotel Smeraldo80.
You might also want to check our website ItaliaHotels34 to see if there is anything there that interests you. If you want to choose some hotels you are interested in and then speak to our travel planner @Erin Meadows22 she could also help you perhaps find some discounts on the property you're interested in. You can book a session with Erin at this link22.
cc: @Mirai Hanna20