Rivnuts from Homestead, PA on 8/10/2023 9:41:58 AM:
As a suburban Pittsburgh resident, I'm not knowledgeable enough to recommend a particular hotel in DC. I'll leave that to someone with better knowledge of DC and its hotels. All the travel reservation websites show the hotels in the area and in route to the C&O trail in Georgetown. I confess to being cheap, so I spent my one-night layover after arriving by train in DC this spring in an Airbnb room located is in northeast DC. There are many of those listed in the Airbnb website.
If you are a Warm Showers users, that may be an option for you as well.
I'm sorry I can't be more helpful but not living in DC limits my knowledge to make specific recommendations. Hopefully others on this forum will reply to your question.