Hello!
The Goodman is the in "the Loop." That's what we call our downtown. If you're looking for a hotel and it must be within walking distance, I'd encourage you to look in the Streeterville, River North, or Near North areas. These areas are far more bustling, interesting, with much better shopping and restaurant options than the Loop which half shuts down after 5 during the week. These areas are all pretty swanky and it might cost a bit more than other parts of the city.
Since the Goodman is very close to both the Red Line and the Brown Line, you're free to stay at any hotel that's also close to those lines of our public transportation. You may be able to find a cheaper/funkier option if you take that course.
Jesus saves. I spend.