Worksharp came out with that new guided sharpener for about 40$, I have one and found that it DOES NOT sharpen small knives well lol. Bigger (or rather, thiccer) knives do okay.
I've been using my beat up spyderco sharpmaker for years and it still does a decent job, so I'd recommend that as a beginner tool (a little expensive in my opinion for some rods and plastic, you can probably find it way cheaper here on the exchange). People say the diamond rods are a must, I find I rarely use them because they don't last all that long and my blades are rarely beat to s*** that I need them.
I think most of my friends and acquaintances use the KME, it's a little more expensive but does a great job.
Personally, I use a 2 sided stone for yuuuge knives, sharpmaker for my kitchen and smaller pocket knives, and Worksharp when I'm bored with the first two, good luck. I seen that, but also seen that it doesn't hold a knife with a 1/4" spine well. I use my Fallkniven a1 alot, and would pull the trigger on that exact sharpener for $50, but not sure if what was said about that sharpener not being able to hold a knife with a 1/4" spine true. That scares me