In some cases, the .net extension is still useful. You can use it if you offer internet, network, database hosting, email hosting, or similar services.
You might even want to use a .net domain name if that really fits your brand.
For example, Behance.net is a popular online design community that uses the .net domain extension for their website. This is perfect for them as they want to become a network of artists, designers and companies looking for talent.
Less than 4% of all registered domain names use the .net domain extension.