If it is just specifically MIDI editing that you need, a DAW can often be overkill. And when it is only MIDI editing, the (free/relatively updated) options are

If it is just specifically MIDI editing that you need, a DAW can often be overkill. And when it is only MIDI editing, the (free/relatively updated) options are fewer. Sekaiju being my preferred tool, but there is also Aria Maestosa which seems less featured, but shows music notation and guitar tabs.