Iam not Dany stan just someone who uses common sense. What is more relevant as lightbringer one sword or three dragons? Show did not said Jon is Azor Ahai Reborn, this is your impression but what show did is that both Jon and Dany were shown to be ptwp by Mel and Kinvara. Azor Ahai Reborn in books is champion of Light, Fire who is the character most associated with Fire? Dany, Who has most hints towards the prophecy? Dany. AAR=ptwp show me where George said it.
“Show did not said Jon is Azor Ahai Reborn“
So, to you, the sword is way too literal, but waking the dragons from stone and killing his nissa nissa (drogo) it’s not?. I have to remind you, that no one not books or tvshow knows about Jon being a Targaryen. Daenerys is the only Targaryen alive known. That’s why everyone consider and afirm she is. Like Maester Aemon in books, and Kinvara in the show.
Melisandre pray for a glimpse of Azor Ahai, and R'hllor only shows her “Snow”
If Daenerys is indeed tptwp/azor ahai, then, why she didn’t see anything about it in the house of the undying? Pretty much everything she saw, was about Jon. Rhaegar dying mention Lyanna. Rhaegar talking about the need of having one more son, the prince that was promised, and the song of ice and fire.
She only dreamt herself as rhaegar on top of drogon. Different case of Jon, that he dreamt himself with a burning sword. This doesn’t mean lightbringer could be literal a sword, but that azor ahai is indeed in him.
Daenerys is called “daughter of death, slayer of lies, bride of fire”
Very important to note, that the last mention of that sequence of visions, was this one “A blue flower grew from a chink in a wall of ice, and filled the air with sweetness…”
Before Rhaegar even met Lyanna, he talked about the prince that was promised, and the song of ice and fire.
Jon is both, ice and fire. He will bond with Rhaegal and ride him, having a drogon by his own. And he also has a direwolf, that he can warg. So he has the power of fire and ice.
The prince that was promised is azor ahai reborn. Just calling with different names. Like azor ahai, the past, the older hero, and the prince that was promised, the present, the new hero.