This question has been beaten to death on BALG to a cartoonish degree.
In the last week alone i posted beginner evocations for both Book I (Ars Goetia) and Book II (Theurgia Goetia).
I’ve also put up posts explaining the 6th & 7th Books Of Moses and the Miracle of New Avatar Power’s Titanic Rite, and have written out full rituals for the spirits in Ars Goetia, including this one, this one, this one, and this one (from the 6th & 7th Books of Moses’ Spirit Commando).
Use the 
you’ll see PLENTY of rituals on here by many BALGers past and present. There’s no shortage of goety on this board