Both Black Bar and Paradise are great lodging options on the Lower Rogue. The Rogue River trail (river right) provides access to hike back up-river through Mule Creek Canyon, if you end up staying at Paradise.
I also suggest stopping of at Zane Grey's cabin (Winkle Bar) and Anderson Ranch (at Mule Creek). These are easy stops along the way and are important sites relative to the history of the Lower Rogue. If you are adventurous, Tate Creek Slide is quite exciting.
Access the BLM webpage and download the Boaters Guide-it provides a great overview of the river, side hikes, and historical points of interest.