Real Christmas trees can be found at most gardening or home improvement stores, as well as at some supermarkets or even online. Look for trees that are fresh and have a strong fragrance, as these are typically the best quality. You should also make sure the tree is well-watered and has all its needles intact. The National Christmas Tree Association has a searchable directory of real Christmas tree sellers in the US and Canada, which you can use to find a local retailer.