Left hand path is going to take more than a month or two. More on the order of a decade of investment. They work to different expectations there. If you want to spend a month or two somewhere, check out the Isha Institute's facility at Coimbatore. It's right hand tantra, but they don't go into the esoteric at all. Their flagship program is called Inner Engineering. There's no theory, it's all application. Most everyone at Isha is normies, until you're into the inner circles, and at that level there's not really much difference between left/right hand path so ymmv. But it's a more effective use of your time than looking for brain-dead meditators on top of a mountain.
The sadhus are mostly snake oil salesmen, just like the energy trainers here in LA. Some have been known to lure lone travelers away from major population centers, and they are never heard from again. Look up the 'thugs.' The tradition of killing travelers is still alive and well, it's just not as widespread anymore. These guys can and will use concealed high pressure sales tactics to convince you they know secrets about creation, and if you were really committed to being the best you that you can be, blah blah blah, you'd just go with them and give them money.
The aghoris are an interesting bunch. They have a lot of media exposure b/c their cremation ground rituals. Their whole shtick is harvesting the last bits of energy left in the human body after the soul has left (the fingernails and hair continue to grow after death, things like that).
In short, no one is going to give you any answers except for yourself. You might be able to find a guru, if you're genuine and open, as well as discerning, and if it's in the cards. But all he's going to do is connect you with your inner guru, and if you're a fucked up piece of work like everyone else on 4chan, you'll need more than a month or two for that.
What else have you checked out? Curious because I'm headed there for ~6 months in the new year.