Put it on the MLS. That will help market the property to the masses.
Restaurant owners are a small niche of buyers. You’ll have to do a lot of networking and private marketing to find your ideal buyer. People who purchase a property for a restaurant don’t want to have to do major repairs to it either.
Investors who own this type of property would be a niche too. Restaurants have a high failure rate. Finding an investor who wants to deal with that level of uncertainty would also be a challenge.
Networking and private marketing are your best bet to move this property. Maybe you can find but a “restaurant owner meetup” somewhere
I'd say this is area where commercial brokers are fantastic. Network and they know the handful of people looking for this product.
List it with a National business broker vs a Real Estate Broker, (maybe line up 3 or 4 possible financing sources a buyer could look into upfront) or OWC.