Because Stewards are made with high fructose corn syrup, try the Forgotten Circle.
Because it is more often than not...Forgotten, bada-cha.
Without giving too many secrets away of this red-headed stepchild of Team Nature, I thought it'd be cool to lay this out to stir the pot as the deck is at times stacked in comparison to other factions that tend to visit nature.
If you're interested in a more chaotic or at times malicious end to Nature then there's a future in The Wyrm Watcher Faction, as a member of the Forgotten Circle! It is a faction With a unique NPC angle with rich history in the Forgotten Forest, a great tie to the Wyrm Watchers DM faction as allies and at times conflicting cohorts, clandestine activities, and an over all more primal and savage feel.
Other classes beyond Druid/sorceror may well be possible. To my recent knowledge I think it's only ever had a few PC druids and a sorceror, maybe two, including current rank and number.
Watcher Application is required, though it is a more mysterious and often overlooked facet of wildlife so I thought I'd give it a shout out here.
A DM may be able to fill you in on more of the details!
An awesomely malicious circle of fun with amazing, secret lore interlaced in the faction. Join it.
This is your big opportunity to get in on the ground floor in a new twist on an old faction, assuming we survive the startup phase. Lots of benefits for both druids and non-druids as well. No app is required for people joining via (forced) conversion. More details will probably get finalized as ShadowCharlatan gets to them.
The best analogy I can think of is an army of mutants to fight H'bala, after getting dipped in the vats of FEV, like in Fallout.
Alignments: any
Incompatible classes: maintaining paladin vows might be extraordinarily difficult (sounds like an extra-fun challenge for someone.)