Both the side boosters on the F9H inaugural flight will be reused boosters. The center boosters are only able to fly on F9H but are planned to be reusable.

Here are both the landing videos of the side cores that will be flying on the F9H https://youtu.be/4jEz03Z8azc https://youtu.be/DKqY8sy3nkM?t=55s