Themes control the appearance of your WordPress site. There are thousands of free and paid WordPress themes available for every kind of website.
First, you will need to decide whether you want to use the free or premium theme. Premium WordPress themes come with support and guaranteed updates.
This does not mean that free WordPress themes are low quality. In fact, free WordPress themes that are available on WordPress.org theme directory go through a very rigorous review process.
You will also need to consider your audience, your website’s topics, compatibility with plugins, and language requirements.
In addition to the themes on the WordPress repository, check out these sources:
As you can see, there are almost as many theme choices as there are plugin choices. There are numerous websites offering thousands of different WordPress themes. Download the WordPress theme of your choice to your hard drive. Once you have the new theme you can use File Manager to upload the compressed file under wp-content/themes directory and extract it online or extract it on your computer and then upload the theme through FTP. Now the theme should appear under Appearance › Themes in your Administration Panel.