I used Google Sites to create free websites for a couple of businesses for my friends and family. First, my friend's electrical contractor business: Trivino Electrical Services. Second, my dad's tutorial center: Young Ones.
They have a bunch of average-looking templates that you can use to quickly create the website.
It's free, but if you want a custom domain, you need to pay $10-$20/year to Namecheap or another domain name registrar.