@rileyscott64 Trundle is better as a jungler, but would be good to learn as a bruiser/scarpper in lane and a pick against tanks.
Really each of the champions you picked have completely different goals both in and out of laning phase so it's more dependent on what you want to get down first
@rileyscott64 Tahm would be doing the Kuma thing to yourself and limitting learning the game to warping around a very unique and shallow playstyle.
Kennen is an incredible teamfighter and does well in lane especially when learning because he's ranged.
Nasus is eternal and excellent to learn