4 seems to be Itsuka Yukihira from Deaimon. 7 is Mahou Shoujo 4-gou-chan. Anyone know 1, 2, 3 and 6?

1 seems to be Gunners according to https://ogre.natalie.mu/media/news/comic/2011/0704/youngace11-8.jpg?imwidth=750 and https://images-na.ssl-images-amazon.com/images/I/51eN86udfOL._SX351_BO1,204,203,200_.jpg Oh 2 is Hoozuki Haru based on https://media.kitsu.io/manga/poster_images/25321/large.jpg?1434304665 Only 3 and 6 left. Anyone?

3 is Kazahaya Kudou from Clamp's Drug & Drop.

ok all solved. 6 is from 修羅界SWIPPERS based on https://images-na.ssl-images-amazon.com/images/I/81P+isx7T7L.jpg

Not yet, 5 has not been sourced yet. Although I wasn't able to find out who she is.

Last time my topic was marked as solved even though it was inconclusive.

Thanks for the reply.

Although this isn't the place to discuss this, what thread was it?

This one: http://www.animecharactersdatabase.com/who.php?id=52295

That's the one I was expecting. It just seemed highly likely to be Sanae, I asked a friend and he agreed. Sorry if it seemed premature.