I only want ESPN during college football season. I subscribe to a live streaming service that carries it during that time. Sling TV is the cheapest service that includes ESPN (Orange plan; Blue plan has Fox Sports), at $35, compared to Hulu Plus Live TV's $70 (it's currently $65, but goes up next week), YouTube TV or Fubo at $65, or DirecTV Stream at $70.
Unless and until ESPN/Disney decide to offer a full standalone service -- as @Strega mentioned, ESPN Plus is more of a supplement to ESPN, not a replacement -- then this is the only way to get it. That's true for Roku or any streaming platform.
Roku Community Streaming Expert
Note: I am not a Roku employee.
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