You should use whichever type of delta 8 product you like the best. Flower and vapes will provide the quickest and most potent effects. Ingesting delta 8 orally, on the other hand, provides longer-lasting effects that are not usually quite as potent. Keep in mind that your body can also use more of the terpenes in cannabis flower or extract when inhaled. Experiment with various delta 8 products to figure out what works best for you.