Google Business Profile. It's completely free and will quite literally, put your business on the map! Even if you don't have a website, you can still go ahead and do this one step to start making the phone ring.
In order to fully optimize your Google Business Profile, you will need to fill out every single part of the page such as photos, phone number, website if you have one. If you don't have a website, no problem. You can use the link to one of your social media accounts for the time being!