I would boost it to an orbit that would not degrade. Then I would have space companies bid on a contract to use the space station as a platform to demonstrate space-based re-manufacturing, a type of in-situ resource utilization (ISRU). It would be a shame to waste this opportunity, after spending giga-bucks launching it, and it would be cheaper & easier than sending an ISRU mission to an asteroid, or trying to bring an asteroid back to Earth.

https://www.upi.com/Science_News/2021/08/12/nasa-international-space-station-deorbit-Russia/3871628619090/