The most direct way to watch Season 3 (and the previous two seasons) is through
The primary home for Ted Lasso is Apple TV+ , where all 12 episodes of Season 3 are available for streaming. ted lasso season 3 complete pack link
Since you mentioned "make an paper," here is a structured outline and summary of Season 3 that you can use as a foundation for an essay or report. The most direct way to watch Season 3