How much does it cost to get local channels on Roku?

Hey there, I'm curious about the cost of getting local channels on Roku. I've heard that Roku offers a wide range of streaming options, but I'm particularly interested in the local channels that I can access through the platform. Can you give me a rough estimate of how much it might cost to subscribe to these local channels on Roku? Also, is there a specific package or plan that I should be looking out for if I want to access these channels? Thanks in advance for your help!