Common Animals:
* Valiant Viper
* Vigilant Vulture
* Vicious Vole
* Versatile Vixen
Less Common Animals:
* Voracious Viscacha (a South American rodent)
* Venomous Viperfish (a deep-sea fish)
* Vibrant Vervet (a monkey)
* Vigorous Vizcacha (another South American rodent)
Let me know if you want more alliteration ideas!