There is lots of free wordpress theme on wordpress.org that you can use for making a simple website. If your content is not so much you can use a free theme. Some free themes of also professional for making bloging website.There is some company that provides most professional level free themes. If need more extra features on their themes you have to purchase their premium verson. On the other hand, most of case free theme doesn’t provide good looking interface and pro features. And doesn’t support page builder like Elementor etc.