Castiel meets other hunters

[beccaleelee]

I'm looking for any fics in which Cas meets other hunters, or a further look into his meetings with hunters, or even John, that we already saw (ie Bobby, Ellen, Jo). I'd prefer gen or slight slash of the Dean/Cas variety (basically, I'm not in a mood for anything rated R/NC17 due to sex scenes). I'd be happy with any version of Castiel we've seen, except future!Cas, but would love some of the original stoneface-angel Cas or slightly-more-human/fallen/adorable Cas. Some protective Sam and Dean would be great, too--maybe defending Cas from confused hunters?

Thank you very much in advance!