I say this from experience that Dantalion is a great spirit to work with.
Like @meow said it seems like Dantalion’s call, if I were you I would answer it.
Dantalion as I’ve seen is a multi-faceted (pun intended) Spirit and he is much much more than what is said about him. The first time I evoked him, I was sitting in a salt circle (don’t ask) and he mocked me. Over time I built a relationship with him. He has helped me tremendously, not only with things but also with psychic senses and a multitude of other things.
If you’re afraid and thats ok, maybe do what @QueenMustang said and do a petition spell.
I would also suggest that you do an extended preparatory immersion of Dantalion, prior to any working with him. This is will attune you to their energy and communication will be much much stronger. It will also alleviate fear. I’m attaching the post with this for your reference.
Goodluck and Devilspeed my friend.