+1 on Missler and I've seen most of his videos.
There's also an Exo-Vaticana by Tom Horn/Cris Putnam.
When referencing Nephilim, Missler and others do err, because if Nephilim were angels, they would NOT be taking wives, as Jesus clearly said, in 3 Gospels, angels are neither married, nor given in marriage. The word Nephilim means giant. They were simply a people who, for whatever reason, had gigantism. It is sad that a whole cottage industry and theological fraud has grown up around this.