RARE EARTH Mineral stocks - what's the your DD process before investing?

I've been looking on this sector for a while now, but I still feels like there's to much data and not enough real deep analysis discussions on it.

Basically part of my DD process I have the specific YouTube channels per sector which each really specifying in its own sector so their analysis coming from a very professional way, but with this rare earth mineral mining sector I can't find any.

Not the “next EV supercycle” clickbait,

I mean the ones that:

• break down geology

• explain capex & ore grades

• map supply chains

• discuss real economics

So I was wondering what's Your process? Do you recommend any REAL professional specific YouTube channel to check?