Spanish Saffron. Spanish saffron is the most common type of saffron, and the easiest to find. Spanish saffron is typically red and yellow and is less expensive than other varieties of saffron.It has a strong color and aroma and is used in a wide range of foods.panish saffron is the most common type of saffron, and the easiest to find. Spanish saffron is typically red and yellow and is less expensive than other varieties of saffron.