If you want to adopt a piano, here’s a site that lists free pianos!
Please be aware that a piano, new or old, will need to be tuned after it is moved into your home. There will also be moving costs. Most movers charge extra if you need to move a piano up stairs – and they may charge by the number of stairs.
Don’t let this happen:
A good book on the subject of getting a piano, either new or used is The Piano Book by Larry Fine