How can I choose a domain name?

There are several requirements to follow when choosing a domain name, including:

1. It must consist of at least two characters.
2. It should be derived from the name of the organization or its nature of work with proof, or it can be a general name.
3. Avoid using the names of prophets, legal entities, countries, or cities.

4. It should start with a letter or number and not include spaces between the characters.