In my experience, if you meet the demon as it is, with as much authenticity as you can, and try to keep pre-existing frameworks and preconceptions to a minimum, you will usually do better than if you try to posture.
Demons can see through your bullshit. You aren’t going to fool them, so just meet them as you are.
The only rough experiences I have had with demons were the few times I came in cocky. I was promptly put back in my place. Other than that, when I have approached with honesty, respect, and openness, things have gone well for me.
Absolutes about spirits are always a red flag to me. We each have our own experiences and frameworks. Who is correct? The experiencer.
I think one of the hardest parts for newer folks in spirit work is getting over that hump of “letting go” and letting the encounter happen. No matter what framework you are using, remember that you may not be controlling the demon, or even the encounter itself, but you absolutely can control your willingness to take part in it. You can also stop, step back, banish, ground, and try again later if needed.
Choose a demon that resonates with you, but do at least enough basic research to understand who you are reaching toward. Then do your ritual, however you need to do it, and see what happens. Take notes and don’t give up. Contact does not always happen the way we think it will, and it may not happen every single time.
Just keep going. Keep learning. Keep paying attention.
Hope you make contact, it's like nothing else!