I love Pikipek, although I wish it was just pure Flying or anything except part Normal, was hoping for that to be changed up. Hopefully it'll get a type change upon evolving like Fletchling did, although I hope it's not Fire. Not really sure what type it could get, but maybe Fighting.
Yungoos ends up being the Regional Early Mammal Pokemon. It's a little odd, pretty much because of it's teeth, it probably would have looked really cute if it had a little mouth, but I'm fine with the way it looks...although I think of a mullet when I look at it. I do like the little info of it not being a native Pokemon and brought to Alola to keep another Pokemon's species from expanding more, guess it'll be in Gen 8 then. I hope it gets a second type upon evolving. Fighting pops up in my head again, but maybe Dark.
Grubbin's got a quick little look to it, and seems like it could have potential of looking pretty cool when it evolves. It mentions liking electricity so I could see it getting Electric type upon evolving. I could see it becoming a favorite once I see it's evolution(s).