A lot of top-level domains have been deployed online since the originals. Some of these names are intended for global use while others are specially designed to serve specific interest groups. Even though they are not as popular or used as .com domains or other original TLDs, you may also encounter some of these domains when browsing online – .biz, .info, .jobs, .name, .mobi,.tel, .kitchen, .email, .tech, .codes, .bargains, .expert, and many others. ICANN manages the managing of internet domain names registration, including not only the most popular ones but also the new ones.
If you have picked a domain name and you know which domain extension to use, you can register your domain through different domain name registrars. Some of the best on the market are Google Domains, GoDaddy, Namecheap, 1&1, Network Solutions, and etc.