Life So Happy volume 3 (JP) - Not the conclusion to the series I thought it would be and the author talks about a fourth and final volume in the afterward, although this has yet to materialise...
Hikaru in the Light volume 1 - A fairly inoffensive story about a girl who loves singing and gets roped into auditioning for an idol group alongside one of her good friends. There's news that it's finishing in Japan fairly soon and at only volume 4 or 5, so I worry it won't accomplish much by then.
Gushing Over Magical Girls volume 2 - Still very horny...
Reborn to Master the Blade: From Hero King to Extraordinary Squire volume 3 - Some excellent fight scenes this time around.
Slayers volume 15 (LN)
Ascendance of a Bookworm volume 20 (LN)
To the Abandoned Sacred Beasts volume 13 - Definitely feels like the story will wrap up in volume 14 or 15. I've been reading this one for such a long time that it's going to be difficult to let it go, but it certainly feels like the right time.
Fushi no Kami: Rebuilding Civilization Starts with a Village volume 2 - Still enjoy the manga for this more than I did the LNs, just cutting down on the MCs monologues has made a huge difference.
Magic Knights of the Old Ways volume 3 (LN) - Still waiting for this to go the way of Last Round Arthurs, but so far so good...
Those Not-So-Sweet Boys volume 7 (complete) -I've really enjoyed this one from start to end. Initially, I was worried there were too many characters and that the story would get a bit generic, but I think that's where having 7 volumes has really helped it because it's not too long but still long enough to flesh everyone out and deal with their backstories.