Oh, well you've got a lot of those to pick from.
The obvious ones are
Veritas,
Gamer, and
Tower of God. Assuming you've read all of those
Geukji High is like that to some degree, though it's a comedy.
Girls of the Wild's is like that too but leans a bit more toward romcom than action; and I know that's not for everyone.
In the realm of manga
UQ Holder is my current favorite of that type. Though to get the most out of it you should probably check out
Negima which is another great series in the same vein, and with some of the coolest action around.
---------- Post added at 01:38 AM ---------- Previous post was at 12:42 AM ----------
And I can't believe I almost forgot the most obvious one.
Histories Strongest Disciple Kenichi that manga seems like it fits what your looking for pretty much to the letter.