That is what a Realtor does for a property. It includes the most similar properties of yours, that have sold within the last 1-6 months. You have to compare your condition, location and major upgrades to those properties and fine tune the value to a realistic amount customized to your home.
You can go to Realtor.com or Zillow and pull the sales on homes that have sold around you, but it pulls in a radius around you. So for example, if you live in an average home in the center of a neighborhood and do a sold search you'll get a good idea of what your home is worth if there have been a lot of sales in your area. However, if you are not in the middle of the community you may get sold homes from other neighborhoods that are not comparable to yours. If you live in an above average home you may not see a clear picture either. These are databases that can only pull from saved data based on your search criteria. So it is recommended that you get a CMA from a professional Realtor that works your area and knows the local market. They are your best source for information about your home. At RREA, we have lots of Realtors to choose from if you need one!
You cannot find a comparative market analysis - you can however consult with a REALTOR? who can then in turn provide you with a comparative market analysis.
A Realtor can provide you with a CMA, and can counsel you on how the market trends and the economic trends in your area effect the market value of your property.
You can search for a Realtor on HAR.com in the Find a Realtor section. Many of our members have "Client Experience Ratings" and their ratings may be helpful to you. You can also Google the name of any Realtor you are considering to see how active they are in the real estate industry.