How do I display data from firebase to Listview using dictionary?

Here is my code for retrieving data in Database and displaying to MIT ListView:

And my firebase database looks like this:

This is the format that displays in my listview:
(Title 3 {Title:'Title 3', Published Date: 'July2022' }.

My only concern is that how can I display only the title of that particular tag into my ListView?

Just use the tagList response to display Titles ?