Okay, I closed the wrong tab by mistake so you get the abridged version of my big wanky rant

Basically, I use
these, they contain a metric fuckload of pieces/exercises randing from beginner to advanced, with both notation and tab. You'd still probably want to sit down with an actual guitarist at some point if you're serious about really nailing the technique, but as far as instructional flamenco stuff goes, this is at the top of my list

Also, check out
this thread for a bunch of flamenco guitarists to check out. Enjoy!