There's a tradition of doing Druid characters in northern European groves surrounded by bears and wolves, BUT CONSIDER:
> Shoreline druid who dances in sea-foam & spends time looking after barnacles
> Antisocial desert druid whose familiar is a golden mole and who buries themselves in sand during the day
> Pallid cave druid, pale and wide-eyed, surrounded by olms and swimming through narrow passageways
> Wetland druid who summons saw-sedge barriers on their enemies and has a bittern with a magically enhanced boom-noise
> Confused tundra druid with lemmings in every pocket who can't get over how people manage without hibernation
> Fast-running steppe druid who whistles to herds of Saiga antelope and helps lead them to water in bad years
> Portly Antarctic druid whose existence philosophy is Be A Penguin and who collects pretty rocks to give their friends
> Cloud forest treetop druid who grows a bromeliad on their shoulder & has a small cloud of hummingbirds around them