So ICANN, has release a multitude of domain extensions. Here are a few examples:
There are domain extension which cover just about anything. Here's a good use of one of those new domain extensions: http://remotesupport.online So this one, would be a website that offers remote support online.
Now you just need to find the right domain name to get your business rolling.
Important: All domain registration sales are final. So be careful when choosing a domain name.
I want to register a new domain..
I already have a domain to use..