Which path might be appropriate for me? I've been learning about Dharma traditions for a while now.

In short: I am attracted by the figure of Siddhartha Gautama and by the fact that Buddhism is not based on faith in the scriptures (nastika). I am completely convinced by his speech on dukkha.

Besides that, I'm not convinced at all by the anatman. I believe in the atman, I am convinced by the vision of the advaita védanta, and I love the simplicity of Patanjali's Ashtanga Yoga and its 8 clear and defined steps to the Absolute (Samadhi).

All this being said, which path to take? Which one would be the closest to my position?

I was told the Madhyamaka of Nagarjuna?
Buddha is pretty cool. Jesus is too. Shiva is pretty cool. There are cool guys everywhere. The real question is what kind of teacher are you willing to understand? Shiva is like falling down a bottomless pit. Which is safe as long as it's bottomless. Jesus knew others like he knew himself and that creates a wonderful basis of good. Buddha didn't like things complicated. a direct approach. He would tell you it's not their responsibility nor his to carry you to the place you want to go. That's on you. They tell us where we could go if we choose to. Now these cool guys look like they might not agree but That's not true. They could see themselves and others well enough to understand they're doing the same work. People have a hard time hearing it. So just take some time a listen. I'm a Buddhist. If I thought there was a superior way to live my life I'd do that. Even if it was prostitution. Gautama did too. So find your love language you wish to speak and use that to learn and share in it.