Just started a parasaur is the best, coz it does not agro on you. Later you can tame a trike or iguanadon or skip directly to a bronto, itæf you know you have enough arrows to tranq it.

The iguanadon it good to get coz they can make berries to seeds, and seeds actually gives more food than the berry does and has less weight, so don't carry the berries for food if you get seeds . Use the berries for the Dino's.

Good luck.