
Chopper true Devil fruit ?
I saw a lot of theory but I think the Hito Hito no Mi model Forest God might be a bit too much. With the new god(dess) of Rain Zaza and some theory about Vivi, it feels like the One Piece just became the quest of Luffy to unify the whole word actually broken vertically (slaves & celestials dragon) and "horizontally" by Grand Line but having 2 or even 3 gods in his crew since almost the beginning is a bit big for me, or it is about the music each of them make, drum of liberation, prayers for rain, etc.
However to focus I think it might be possible he has something like Hito Hito no Mi model Druid. I would personally more go with something like Eir, Nodens or even Cernunnos who are gods or goddess in different mythology but all liked to healing or forest.
I believe more in Cernunnos because it's half human half deer, almost like Chopper who is reindeer. It could be true as our real world divinity feels like "second plan" divinity in one piece just like we saw with the Hito Hito no Mi model Buddha of Sengoku, an overpowered fruit but put on second plan compared to Nika or other gods mentionned in Skypeia. The connection with nature of chopper has been only explored halfway, while he litterally comes from the forest originally, I also feel like his beast mode ressemble the spirit of the forest when angry, just like in Princess Mononoke, when the spirit of the forest was made and spread diseases instead of curing them.
I still strongly believe in some Druid model, like we saw for the Great Priest model.
Otherwise, I might also think we could have had everything under our eyes since the beginning as to why people call Chopper "Tanuki" and why does he has this form instead of his actual reindeer forest, it could be some kind of Tanuki who is a trickster in japanese mythology but brings good fortune, they can also shapehift into human form or different form which is why chopper has so many different forms. Plus everytime Chopper is around, the strawhats always have good luck (basically healed from deadly wounds) or feel some kind of relieve. Plus, his "base" form does look like a Tanuki, which can be why he is called like that to "spoil" us the form, something that Oda really likes to do.
Also, Nodens is the celtic god of healing and dog, Tanuki is also called Racoon dog and was often discribed as the "pet" of the strawhats. Chopper also always have a hat like the Tanuki Okai, who always wear some traditional japanese strawhat. Also are the antlers attached to the hat or him cause without them, he does look like a tanuki.
I may have not be clear but here is a recap of the devil's fruit I believe
Hito Hito no Mi Model Tanuki/Yokai
Hito Hito no Mi Model Druid
Hito Hito no Mi Model Cernunnos (celtic god of nature, circle of life (link with the reverse domi "dying" and coming back to life by his touch)
Or another god like mentionned before.
UPDATE: After some research I found that a video game exclusive character named "Pato" is a pen (yeah a pen) and designed by Oda, ate the Mythical Zoan Inu Inu no Mi Model Bake-danuki which literally makes him transform into some kind of Tanuki. So it might not be possible to have the tanuki for chopper haha
I also found this from Oda, if the DF from Chopper was ONLY human why would Oda be so evasive, remember Oda likes to play with us, putting something under our nose then leave it only to re-appear years later. Note the words "finding your true spirit" which is for me linked to what happened in the latest chapter of OP. Also note the "Or not. Basically, not" which for me clearly evokes a similar situation of what happened to Luffy, he has the power he think he has, Luffy was told it was the gum gum fruit so he has gum gum fruit, same thing for chopper. Also, Oda said that fruits have their will of their own and often link to people with matching will, Chopper biggest will wasn't to become human even if he dreamt about it, it was to cure all diseases, which would be unknowingly his power, also how tf does he finds all the time the right ingredient on island with so many different climates when he has never put a foot there.