In this fanfiction, Jon Snow's main allies could be quite diverse. First, there's Tormund Giantsbane. Tormund respects Jon and would be willing to fight alongside him. His wildling knowledge and combat skills would be valuable. Then, there's Melisandre. Despite her mysterious and sometimes controversial ways, she has her own powers and could use them to help Jon in times of need. And don't forget Sansa Stark. She has grown into a shrewd politician in her own right and could use her influence to support Jon's role in the Kingsguard and protect the king.
His main allies could include Davos Seaworth. Davos is a shrewd man and has a lot of experience in the political games of Westeros. He could offer Jon advice on how to navigate the court. Another possible ally could be Brienne of Tarth. She is a skilled warrior and shares Jon's sense of honor. They could fight side by side to protect the king. Also, Gendry could be an ally. He has his own strength and could be useful in battles to defend the king.
The wildlings might be his allies. After all, Jon Snow has had interactions with them before. They are fierce fighters and could fight alongside him against a common enemy.
Daenerys could be an ally. Since she is the mother of dragons, she might initially be hesitant but then see the potential in Jon Snow riding one of her dragons. They could team up to fight their common enemies.
Jon Snow could potentially have allies like the Mormonts. They have always been loyal to the Starks. Maybe even some of the Dornish houses might side with him. They have their own reasons to oppose the current power structure in Westeros. And of course, his friends from the Night's Watch who left with him or believe in his cause could be his allies in this conquest. He might also gain the support of some of the maesters who see the value in his leadership for the future of Westeros.
Jon could find an ally in Arthur Dayne. Dayne was a great knight, and if Jon could prove his worth and show that he has knowledge of threats to come, Dayne might side with him. Also, Bran the Builder is a possibility. Given that Bran is such an important figure in Westeros' history and has some connection to the supernatural, he might be intrigued by Jon Snow's situation and decide to help him in his time - traveling endeavors.
One idea could be Jon Snow being the Kingsguard during a time of great political unrest in Westeros. He has to protect a young and inexperienced king from various assassination attempts by rival houses. Another plot could involve him having to choose between his loyalty to the king and his loyalty to his Stark family when a conflict arises between them. Maybe he discovers a dark secret within the Kingsguard that threatens the stability of the realm.
His half - sister Sansa would likely be one of his allies. She has proven herself to be a shrewd politician and would be a great asset in ruling the Seven Kingdoms. Also, the North would most probably stand by him, considering he is a Stark.
Allies could include the remaining Stark family members. They would surely support the baby as it is part Stark through Jon. The Unsullied might also be allies as they were loyal to Daenerys. As for enemies, Cersei's remaining supporters could be a threat, seeing the baby as a rival to any power they might still hold. Also, the Night King's followers (if any still exist) could see the baby as a new target, a symbol of the new life they oppose.
It could be a young and untainted Frey. Maybe a niece or a cousin of the more infamous Freys. One who has not been involved in the past atrocities committed by her family and has a more noble heart.
Annabeth would definitely be one of his main allies. She has always been by Percy's side and her intelligence would be crucial in helping him navigate any challenges he faces while being 'god - like'. Grover could also be an ally. His connection to nature and his loyalty to Percy would make him a great support. Another possible ally could be Nico. With his powers over the Underworld, he could offer a different perspective and unique assistance when Percy is dealing with threats related to the afterlife or the darker aspects of his new - found status.
One of his main allies could be an Atlantean princess. She could be well - versed in the ways of Atlantis and help Percy navigate the complex social and political structures. Another ally might be an old Atlantean sage. The sage would have a vast knowledge of Atlantean magic and history, and could offer Percy valuable advice. There could also be a merman who is an outcast like Percy in some ways. They bond over their differences and help each other out in tough situations.