I actually use konqueror, even on my lxde machine. There are just too many features that work more easily than any other file manager.
That appeals to me, at least for a trial. Gnome-commander too.
I actually did GOOGLE this on Sunday, before even trying Nautilus. Found a couple other possibilities but none that were in the repo. Now that I have my config working well, I was hoping to keep it that way by asking what others are using successfully....
mr-roboto, unless I am wrong about this (often the case) the goal of our LXDE version is to offer a lightweight, fast, nimble, resource conservative ISO.
You can, or should be able to, install anything from the repos that you like at the expense of resources.
Keep in mind however that some of the KDE applications have dependencies that go so deep, you might as well be running KDE.
You might be better off looking at the "Gnome" offerings for LXDE.
(I think I already said,,, I could be wrong)