I use a norton India oil stone for setting up a new edge or bringing back a dull one, finished up on either an Arkansas stone or ceramic stick.
I also have a norton crysolon like that is nice if I have a lot of stock removal to do or if the steel is more abrasion resistant than basic carbon and stainless. It cuts very fast but leaves a very coarse edge.
I keep a small fine India and Arkansas stone at work in my tool box for touch ups when needed.
I don't use any oil on my stones, just sharpen dry and I wipe the stones with a rag every now and then. I can easily shave arm hair and sometimes even treetop hair with my Arkansas stone.
I have a bunch of sharpening gear I don't use, diamond stones, sharpmaker, lansky, dmt aligner, strops and polishing compounds, ect.
I prefer the feel and tradition of sharpening on natural stones freehand just like my ancestors did, plus the results I get this way are awesome so why change?
There are a couple knives in my collection that have convex edges, like my bark river, that I sharpen using wet or dry sandpaper on a piece of leather strop, but I don't use them very often.