What to do with a business I no longer want?

I bootstrapped an e-commerce business many years ago and it has always been just myself. It is in a niche I no longer care about and have little desire to keep operating it. It has always been profitable enough to keep it going, but not profitable enough to scale it or bring on employees.

I offered it to people in my network, then listed it with a broker, but did not result in a sale. The business is not complicated but also not a simple SaaS or FBA that most buyers seem to want. A fair valuation is likely high five-figures.

What have others done in this scenario? While it is running I don't have much time to work on something new/different and I feel it would be a shame to shut down a profitable and established business, but there is also opportunity cost for me to keep running it.