Kangaskhan are reasonably easy to find here in Australia (I wonder why? ), but Tauros are only available if you hatch them from eggs.
I'm waiting until I use my next lucky egg, but I'm finally able to evolve Horsea into Seadra. I was also reading about this Buddy System feature that's coming out. I guess depending on the Pokemon, after you walk between 1k-3k you get candies for that Pokemon. That could make the leveling process a lot easier for sure.