Could always stick to simple evocations, like fairies, monks, dragons, etc.
Honestly though, I highly doubt you would be dominating them. Your sub conscious will be prepared for their presence because you already performed the ritual and if you believe in the power so does your sub-conscious so you will most likely be listening at that point. Think of it as like “Magick Brainwash.”
Anyway,
I suggest the search engine as there are quite a few beginner evocations on the forum.