NamePros is a gold mine. Read as much as you can. When a thread has 206 pages, do not be afraid to go back to page 1 and read the whole evolution of the topic. DomainSherpa is an amazing source of information too. You think you’ve watched enough videos? Go watch one more. Lately I really enjoy reading Zandibot and DomainShane blogs. YouTube is also full of information. Do not blindly copy what you watch or read. Just gather as much information and build your own opinion based on others experiences...