The "Nordic Beasts" are connected to the Norse Mythology God "Thor". The two tokens Summoned by "Tanngrisnir" are "Tanngnjóstr" and "Tanngrisnir" himself; those beasts are the two goats that pull Thor's chariot. "Gullfaxi" is a sacred horse in Norse Mythology ; Thor gave it to his son Magni as a reward for helping him in a fight against the Giants. "Garm" is a dog associated to Ragnarok, and it guards the Underworld.
If only Beast monsters are used, "Naturia Pineapple" can be used as a Level 2 monster that quickly can be Summoned to the field, or "Solidarity" to boost your monsters' ATK, except for "Thor". However, these two cards cannot be used together.