In production since 2004, the DB9 was the cornerstone of the range for over ten years. Glorious V12 engine with over 400 bhp for only a bit more money than a DB7 Vantage. Plenty to choose from, although most are either silver, grey or black. Cars from AM main dealers are perhaps a little more expensive but are often the best examples. A great place to start your search would be https://used.astonmartin.com/. Getting close to the bottom of their depreciation curve?
Spec note – manual DB9’s are rare – rarer than the desirable manual VH3 DBS.