How to sell small Amazon business?

I have a single item business that I’ve been selling via personal website and Amazon for three years in the health/wellness space. It doesn’t generate much, about $2.5k/mo with 56% EBITA, but does so 100% organically with no ad spend. Profits/growth dipped after the emergence of a few competitors, but stabilized over the past two years. The market is now too small for newcomers. I have the business and brand registered with the state, but haven’t made the optimizations within the Amazon ecosystem (like changing the product from generic to PL).

There’s a lot more I can do, but my career (in an unrelated area) is taking off and I’d like to sell my entire business. Most of what I’ve read cater to large sellers making 6 figures. Do y’all have any bespoke advice for selling a small, 5 figure business with healthy margins?