Alright alright alright fine
Druids - These are the Voice of Nature. They can also be it’s terrible wrath, but on a day to day, they are connected directly to the Land, Moon, Wild Fire, etc in the context of how those things are part of Nature. Some serve gods like Silvanus, while others revere the land itself. Their magic is the magic of someone whose entire being IS the Power of Nature.
Rangers - Their magic also comes from the land, from nature itself, but they do not focus on it nearly as much. Instead they express reverence for nature by prowling and striking from the shadows like a predator, knowing the land as a friend rather than making it part of themselves as the Druid does.
Where is distinguish them more would be to give them animalistic or even supernatural senses, in addition to the climb speed, ignoring difficult terrain, ability to move soundlessly and hide from natural sight, etc, and the ability to share these abilities in some part with allies to make the team better.
Also the ability to understand beasts and creatures of the plant type.
Barbarians - Counter to a lot of folks, I’d give Barbarians a little more supernatural juice in the base class. But, since that drives a decent chunk of folks up the wall and back, I’d probably compromise and at least make it soemthing you could choose from a list that includes purely martial stuff as well.
But, the Barbarian would be purely rituals.
I’d also give the Barbarian a pet subclass, and the Druid, but their pets wouldn’t be as powerful as the Ranger’s, because again, the ranger treats with nature as a friend and ally, and being able to befriend beasts is right in that wheelhouse.
I think I agree on all fronts here! I'll give a more substantive response to each thing some other time, don't really have it in me right now due to real life events.
But yeah, this is pretty close to the kind of perspective I was hoping someone'd offer up. So, thanks!