In self- pollination the pollen goes to the pistil of the same flower. Self-pollinators are: pea, bean, wheat, barley, lettuce, tomato..
Wind pollination is used by corn, spinach, beetroot, chard, rye, oats...
kruisofzelfbestuivinggrInsect pollination happens with leeks, chicory, celery, carrots, parsnips, clover...
Flowers lure (specific!) pollinators with nectar, color, smell (not necessarily a pleasant!), shape (the lower lip of the flower of Salvia is a beautiful landing spot for bees). Sometimes the shape allows only one type of pollen wearer: hummingbird, butterfly,..
Night pollinators: some plants as Mirabilis will only open in the evening, when their main pollinators, moths are active.