I don't know whether any of the characters in Tolkien technically meet the definition of the 'chosen one' tropes. I may be simplifying the trope too much, but here is how I see them:
Aragorn wasn't special in that he was "the one" - he was from a long line of anyone who could have been 'the one' had the events happened in their lifetimes. I think it's missing the point to assume that the events happening necessarily require them to happen in the lifetime of
specific people, rather than just picking the best suited people who are around during said events.
That is, Aragorn being Aragorn didn't trigger any of the events of Lord of the Rings, more he was simply the latest heir during the time that the events happened. It may just as well have been Arathorn who did them. Or Aragorn's progeny. (though the whole "you can't marry my daughter until you become king" may negate that to some degree) Any of Isildur's line could have commanded the Armies of the Dead, to let them fulfill their vows.
Similar to Bilbo and Frodo. Bilbo was arguably a 'chosen' one, literally chosen by Gandalf, to be part of the Dwarven party for reasons I don't think were ever really clearly defined for us (or maybe I missed it?) Even so, he wasn't a part of prophecy or the only one who could have done what he did, I think it was simply the trigger for events that followed, but not having anything to do specifically with who was involved. If that makes sense. Even the Ring wasn't important until later (that is, even Tolkien didn't know it was important at the time, and Gandalf only finds out later.)
Frodo again wasn't a chosen one either, anymore than Sméagol was a chosen one, or Sam. Frodo's only real push at the beginning was "Hey, uh, yeah so this horribly cursed Ring, y'know that ONE ring (the chosen ring?

)... yeah, might want to get that out of the Shire before horrible things happen." So he went to Rivendel, but that was all the further he had originally planned to go. He volunteered to go further, but he didn't have to, he could have left it to the 'greater peoples' to decide what to do.
Yeah, I'll become repetitive so I'll skip to the end - none of the people involved in LotRs were chosen to be special for some task that they and only they could do - rather they were the ones who were around and willing to do what needed to be done during the time that the events happened. Others could have stepped forward or taken up the burdens.
There were also lots of deaths, although the one Ha, psyche! with Gandalf might get a bit tropy, but
for the most part dead characters stay dead, events aren't foretold, and no one has a strange birthmark (Elora Danan), or extraordinary
unknown parentage (Luke Skywalker), or gets used as a pawn by others/warring factions (Katniss Everdeen).
/2 cents