>So what is the scoop on all of these individuals and entities.
There is hardly any consensus. Some people follow them on the same basis as Austin Steinbart (contact high from hopium), some people check and see how much of what they are telling is REAL. But the concepts many of them talk about are real, for example the Cabal is real, pleiadians are real, reptilians are real, and the "Alliance against the Cabal" is very likely Q team itself, or a similar group. The likes of Cobra (from 2012portal.blogspot.com) and Wilcock have been using Q's terminology (Cabal, white hats, MKULTRA etc.) years before Q, so there is at least that common ground. Bill Cooper is endorsed by Q and his book details Navy Intelligence information on some specific ET races, the veracity of which also cannot be verified by the writer itself. Except of course for that cigar UFO encounter on his submarine.
Q is "dangerously" close to some New Age concepts himself. Incarnated Extraterrestrials? Love and Light/spiritual warfare? Linking songs with angels (Future world music - victory of life volume 11)? Nothing is random, all these motifs appear in multiple crumbs.
>There has to be some kind of connection and slight evidence beyond what they talk about that we can get on the outside.
There is a strong connection between the material of famefags like Corey, Wilcock, Cobra etc. and Q. So how to separate the wheat from the chaff? My guess is - find out what information you can uncover YOURSELF. Let all famefags serve you as a "raw" information source for you to filter. You can get outside information if you wish, sometimes only if you look up into the sky.
My personal opinion is - undecided on Corey and Wilcock, faker and con artist on LATER WORKS of all these: Cobra, Barbara Marciniak, Billy Meier (guy claims he's the sole ET contactee ever; give me a break dude). Some that start with good intentions and have great early info can get screwed over by the clowns, like it happened to Baruch on /cbts/… but if 10 completely different people talk about the same thing over vast geographical distances and long periods of time, chances are it's real (like greys, reptilians, angelic aliens, NWO Cabal of course).