When you know you need to market online but have no idea what to do first, my answer is almost always the same. Build from the ground up instead of grabbing a random tactic.
Step 1: Fix the base
Don't send people to a site that isn't ready. Fix broken links, update prices, and make sure it works on a phone. Not sure where your site stands? Ask me to take a look before you spend anything. What small businesses actually need from marketing goes deeper on this.
Step 2: Claim your local listings
If you serve a local area, your Google Business Profile is the best free thing you've got. Claim it, verify it, fill out every field, add photos, and start asking your best customers for reviews. Here's how I'd go about getting more of them.
Step 3: Answer what customers already ask
Content doesn't have to be complicated. Write down the ten questions customers ask you most, and turn each one into a simple page or post. It builds trust and gives Google something real to match you to.
Step 4: Pick one channel and stick with it
Don't try to run Facebook, Instagram, LinkedIn, and TikTok all at once. Pick the one where your customers actually hang out and stick with it for six months before you add another.
Going steady beats going fast here. Once the base is solid, it helps to know when doing it yourself stops working. Or start here if you'd rather skip the guesswork.