Can I pay Google to rank my restaurant higher on Maps?

No. Google says: "There's no way to request or pay for a better local ranking on Google." You can run ads, which are a separate product.

• Complete and verify your Business Profile with correct hours, photos and a working menu or ordering link.
• Ads such as promoted pins are a different product with their own cost.
• Google Ads "Performance Max for store goals" can show your restaurant across Search and Maps.
• Add your ordering link so customers can order straight from your profile.