A good guideline of thumb is one pound of fruit per gallon of sangria. This will yield a fruity and refreshing drink, without being too sweet. As for what kind of fruit to utilize, it actually depends upon your preference. https://tourismcrisis.org/?p=713 Some great choices consist of citrus fruits like oranges and lemons, stone fruits like peaches and plums, and berries like strawberries and raspberries. Experiment up until you find a mix you like!