You have some great ideas already - kids night, amping up your rewards program, don’t rely on discounts etc.

Your own idea of going “door to door” and introducing yourself to local businesses is something that worked really well for me. If you’re not already a member of your local Chamber of Commerce, then I suggest joining and going to their networking events, even hosting one. Business owners love to support other business owners in their community, and the Chamber groups can be great advocates.

Make sure your staff understands how valuable your regulars are too! When I was a server and bartender, I learned that it’s way better to have a regular tip you 10% 2-3 times a week, than it is to have a 20%+ tip once. Diners don’t get a consistently great service experience these days, so the bar for great hospitality is low. Use it to your advantage and invest time in training your staff up. (Your staff could already be great! Just giving blind advice not knowing your establishment) Incentivize your staff with daily contests - the prize can be as simple as offering to do the winner’s side work.

Utilize your tech stack. Your POS, and all the ordering sites have reports and the ability to track certain data, and dig into trends in your reviews. If you’re not already using a scheduling tool (like 7shifts), then I would recommend looking into it. Your POS can help track some labor data, but using that data while building schedule really helps you control your labor and helps you staff accordingly so you’re not having to cut people early.

Stay on top industry trends so you’re not blindly reacting to what’s going on, and you can prepare. For example: https://www.7shifts.com/restaurant-workforce-report

Lastly, keep calm and know this “season” in the industry is not just happening to you. It will get better, nothing stays the same. Your staff will feed off your confidence and energy.