Tyrion Lannister could be involved. He was close to Daenerys and had a relationship with Jon as well. He might be the one to help protect the baby or offer his wisdom in raising the child. Another character could be Ser Davos. He was loyal to Jon and would surely be interested in safeguarding the future of Jon's heir.
Well, in some fanfictions, the baby could be a symbol of hope. As Jon and Daenerys' child, it represents the union of two powerful houses. The baby might grow up to be a great leader, trained in both the ways of the Targaryens and the Starks. It could bring about new laws and a more just society, learning from the mistakes of the past rulers in Westeros.
One idea could be that the baby is born with a special ability, like being able to communicate with dragons even more so than Daenerys. Maybe the baby's presence unites the remaining kingdoms in a way that Jon and Daenerys alone couldn't. Another thought is that the baby becomes a symbol of hope for a new era, with people from all over coming to see the new heir of the Targaryen - Stark line.
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.
One great 'Jon Snow and Daenerys Love' fanfiction is 'A Song of Ice and Fire's Love'. It beautifully weaves their individual storylines together into a passionate love story. The author really captures their personalities well.
One interesting fem Jon Snow and male Daenerys fanfiction could be where they form an alliance in a different way than in the original story. Maybe they meet as equals in Essos before the events in Westeros get too chaotic. In this fanfic, their relationship could develop through mutual respect for each other's leadership skills.
The popularity of 'Jon Snow and Daenerys Fanfiction' mainly lies in the potential of their relationship that was cut short in the show. Fans were intrigued by the idea of the two powerful characters coming together. Their different backgrounds, with Jon being a Stark and Dany a Targaryen, add a lot of depth to the possible stories. It's like a union of ice (Jon) and fire (Dany), which is a very appealing concept.
I really like 'Jon Snow and Daenerys: The True Alliance'. It shows them working together against the common enemies in a very believable way. The author does a great job of portraying their individual personalities within the context of the alliance. Then there's 'Dany and Jon: Love Beyond Prophecy' which takes a different approach. It focuses on their love story as something that defies the prophecies and expectations, creating a very romantic and engaging read.
One interesting idea could be the political implications of their baby. Since Jon and Daenerys both have claims to the throne, their child would be a powerful heir with a complex lineage. Another idea might be the cultural impact. Their baby could symbolize a union between the North and the Seven Kingdoms, bringing different traditions together. Also, the baby could be a key factor in uniting the remaining factions after the great war, as it represents a new hope and a future for the war - torn land.
The fanfiction might show how their relationship deepens through their shared love for the baby. They could become more united in their parenting, which in turn strengthens their bond as a couple. Their different backgrounds and experiences could also be reflected in how they approach raising the child.