Texas LLC Similar Name

[Marker Johnson]

Let's say I want to register a Series LLC business called Imgreat LLC(fictional name). I search Google and the Comptroller of Public Accounts site and I get no results of anything similar. Even searching Im Great LLC returns nothing. I go to register the business and a business name called I.M.Great Co LLC pops up when searching the database. I.M.Great stands for Ian Michael Great, the person's full name. This business is in another city and there is no other information I can find about it.

1. Can I register my business name?

2. If not, can I register Imgreat Now LLC?

3. If so, can I DBA Imgreat LLC?

From what I've researched 2 and 3 are a yes. I've read for #1

https://direct.sos.state.tx.us/help/entitynames.pdf, but it's confusing.