I change male Savannah monitor

Hello, i would like to change my 11 months old my male Savannah monitor lizard. He never bite. He eat cricket, worm And 1 day old chicken. He Is 60 cm long.
i change him for
Heterodon nasicus
Euprepiophis mandarinus
Oreocryptophis porphyraceus
Tiliqua
trimeresurus
or Viper
ONLY CZECH REPUBLIC ON PRAGUE