Let me introduce you to: the Keeper. A druid archetype for those who want to be a Druid, and have a beast companion with whom they grow and bond!
Druids of the Circle of the Keeper take up a bond with a familiar and use that bond to pursue their goals and ambitions. Their order reveres the link between planes and creatures both natural and unnatural. They live amongst any group, offering both aid to the suffering and combat superiority to adventuring groups equally.