None. Hylocereniae (disocactus(former aporocactus), epiphyllum, hylocereus, selenicereus,weberocereus and psedorhipsalis )dont form hybids with other plants..
Epiphyllum and disocactus can mix, and a lot, and they are popular...
Ive heard of hybrids between those 2 and selenicereus, or selenicereus and hylocereus, but could be mix ups at best...
