Where to promote digital products for small business branding?

I sell editable Canva templates for small businesses.. mainly display card templates, business branding kits, thank you cards and business card templates. I sell them on etsy at the moment but I feel like I should promote them somewhere better than social media. I dont know how to find my target audience and people that would be interested. I also post them on threads but it's not doing much. any advice would be appreciated!!