The three dragon riders are

[PSHorton]

I believe that if Jon or Aegon don't become one, then a certain young paraplegic is gonna warg the shit out of the remaining dragon

[drigoly]

I don't think that a non'targaryen could control them, so i would go with:

Dany, Jon, Aegon

[brando6]

I thought a clue to the riders could have been given in ADWD, where Tyrion is in Volantis with Joah and he spies three heads on a bridge.

One was a woman who had struck her mistress, and i thought Dany as she struck Viserys (she seemed to be a slave to him all her life)

The second a man who was fomenting rebellion, and spying for the dragon queen. I presumed Jon as he is rebelling in the ranks of the Nightwatch, rather than staying neutral. And there is the possibilty of contact with Dany to come.

(Wannabe Aegon could also be considered here)

The last head however was a man whom killed his father, which of course i presume to be Tyrion.

[Arya of Winterfell]

Drogon - Dany

Viserion - Tyrion

Rhaegal - Jon

I'm not too sure if Aegon is fake or not but GRRM said that you don't have to be a Tarygaryen to be a rider, so even if Aegon really is a Targaryen he may not be a rider.

Anyway, there is another link between the three. IF the Rhaegar + Lyanna = Jon theory is true then the mothers of Dany, Tyrion and Jon all died in childbirth.

Rhaella Targaryen died giving birth to Dany.

Joanna Lannister died giving birth to Tyrion.

Lyanna Stark died giving birth to Jon. (If R+L=J is true.)

However, if the riders have to be Targaryen than there is the whole theory of Tyrion being the bastard of Joanna Lannister and Aerys Targaryen. We know Aerys liked Joanna or desired her, so it could be possible. I'm not a huge fan of this theory though.

[NorthRemembers]

Jon, Bran and Arya, Dany is just the delivery girl. Stepping ashore in KL claiming that the Iron throne is hers by right doesn't work that well.

Three Starks riding around westeros bring vengeance, independence for the North, and all around bad-assery? Sign me up.

[Arya of Winterfell]

Three Starks riding around westeros bring vengeance, independence for the North, and all around bad-assery? Sign me up.

That would be pretty cool. All three would have their own direwolf and dragon, then. Epicness. But I seriously doubt this would happen. Jon and Bran are possibilities, but Arya? I don't think so. I just want her and Nymeria to reunite.

[Risha]

Victarion might control one of the dragons long enough to get it back to Westeros, but the riders will be Jon, Dany, and Tyrion. Jon and Dany have the Targ blood, some warging ability and cartloads of courage, but Tyrion has something more powerful...knowledge.

[DornishKnight]

Intended 3 Heads of the dragon: Jon, Dany, Aegon (if YG is fake, he may be alive somewhere else).

3 dragon riders: Dany, Tyrion, Victarion.

[Leigh of Oldstones]

Sansa will be one for sure, it's been foreshadowed since ACoK at least.

1. When she's on top of Maegor's Holdfast and doubles over from her cramps, the Hound catches hold of her and says, "Does the little bird think she can fly?"

2. After she escapes from KL and is in the Eyrie, she watches a falcon circling and wishes she could fly away from there

3. At the Inn at the Crossroads, the Tickler or Polliver, can't remember who, tells Sandor that Sansa turned into a wolf with leather wings like a bat and flew away from King's Landing.

Hmmm, and she's called Little Bird since AGoT... Maybe that's where the foreshadowing started. Birds fly, after all...

Also, we know the show producers know in general how the storyline is going to go. In the show, Sansa wears a dragonfly pendant, a dragonfly ring, and in an interview once Sophie Turner said that her corset is embroidered with dragonflies... Some of her dresses have had dragonflies embroidered on them.

Dragon. Flies.

I think it's a hint that Sansa is going to become a dragon rider.

[The Lioness Cersei]

Drogon: Deanerys

Rhaeger: Aegon

Viserion: Visery's ghost 💋

Only Targaryens ride dragons! So stop it with all this Jon stuff.