If you’re new to this work, then I first recommend you set up some basic spiritual hygiene practices to ensure that you don’t attract unwanted interest from energy beings, and that you don’t get impostors.
Here is a getting started with magick guide. You’ll want to get your spiritual hygiene sorted out, and start work on developing your astral senses, then when you can know you have a decent chance at avoiding impostors and parasites then try the first contact guides we have on here.
I recommend a simple petition from that last link, which doesn’t need you to have two-way communication skills
No, that is not one of his offices… Clauneck is about protecting and developing wealth.
For entities that specialize in love and sex magick, there’s a list from the Goetia here, or try the Search feature for more ideas from this forum.