As it stands, you are able to retrieve an Electric type right now, if you are able to stand a sheep.

[[At that, she pulls a Pokeball from her pocket, letting the Mareep out to show Karkat.]]

Mareep is a decent fighter, I've found, but a little flighty. I've also come into possession of a Shinx, having received the egg from Dave a while back. Which should be hatching soon, now that I think of it...

[[Glance at that shock-y egg by her bag.]]

I am unsure of any other Electric types nearby, and I do not think any Dark types inhabit these areas either.