I make a lot of dishes that call for cream and I substitute with the usual suspects such as soy, almond and rice milk mixed with thickeners to get to a good cream consistency.  They have all worked fine and I am happy to use them.  But to be honest, my favorite non-dairy cream that I can just use directly from the carton is Mimic Creme, which is both dairy-free and soy-free.  For everyday dishes I use the unsweetened version made of ...