It is important to decide first who you going to summon, this decision can only be made based on knowledge. Because you need to know at least one spirit to be able to choose. What you could do is open a grimoire and read about all the spirits that are contained in that book. You will start to feel a certain pull towards one or few particular spirits. It might can become apparent to you that you will begin to notice that you will see that/those names popping up regularly when scrolling through this forum or other outlets.
If that is the case, than that can be seen as a sign that, that specific spirit wants to work with you. I can’t imagine that a spirit that wants to work with you, will harm you or disturb you after the ritual. Just for the sake of it, that’s seems counter productive.
In addition to what is stated above by @DarkestKnight, you could start/try out your first ever exciting summoning ritual with the servitor provided by our fellow member @anon97554939
It´s also possible to combine it with the Seal of Manifestation.
Good luck 