Since there's not much information given about 'branch x synth fanfic', it's hard to say precisely. However, if we break it down, 'branch' might be related to a sub - section or offshoot of a main idea or story. 'Synth' is often associated with synthesis, so perhaps it's a fan - written story that fuses different elements (represented by 'branch') in a synthetic or creative way, perhaps involving science - fiction or futuristic themes.
Sorry, I haven't come across any 'branch x synth fanfic' specifically, so I can't recommend any at the moment.
One common theme is friendship. Branch and Poppy's relationship is often explored in depth, showing how they support each other. Another theme could be growth. They both grow as characters through their interactions, like Branch becoming more outgoing.
In a 'branch angst fanfic', the 'branch' could be a metaphorical one. Say, in a fanfic based on a fantasy world, a character's magical powers start to develop in different 'branches' and they are conflicted about which way to go. They might be afraid of losing their old self or making the wrong choice, and this internal struggle is what the angst in the fanfic is all about.
Well, it depends on how popular 'branch x creek' is in the fandom. If it has a decent following, then there are likely to be some fanfics. However, I'm not sure specifically if there are many or not without actually searching those fanfic platforms. You could also try looking on Tumblr, as some fans might post short fanfics or links to longer ones there.
There's a fanfic titled 'Poppy and Branch's Secret Quest'. In this, they might embark on a quest that no other Trolls know about, and during this adventure, they discover new things about each other. And then there's 'Branch's Surprise for Poppy' which could be about Branch planning something really special for Poppy, like a unique celebration or a heartfelt gift. You can find these kinds of fanfics on various fan - made story platforms.
Besides the well - known fanfic platforms like AO3 and Fanfiction.net, social media platforms can also be a source. For example, Twitter. Sometimes fans will tweet about their fanfics or link to where they are hosted. Instagram might also have some fan - made art with captions that could be considered short fanfics. But for a more comprehensive search, AO3 and Fanfiction.net are still your best bets.
Well, it could be a story where Harry stumbles upon the second branch of the Potters. Maybe it's a long - lost part of the family that has some unique magical abilities or secrets. Since it's a fanfic, the author might take creative liberties and introduce some interesting plot twists, like the second branch being involved in a hidden magical society or having a connection to an ancient prophecy that Harry then gets drawn into.
DeviantArt can also be a source for 'Trolls Poppy x Branch fanfic'. While it is mainly known for art, there are some writers who post their fanfictions there as well. You can search for the specific pairing in the search bar and filter the results to find written works. Additionally, Wattpad may have some 'Trolls Poppy x Branch' fan - written stories, so it's worth checking out.
I'm not sure of specific 'branch x poppy fanfic' titles off the top of my head. But often in these fanfics, they could be exploring new territories. For example, they might find a new tribe and have to learn their customs. Their relationship could develop further through these shared experiences, like Branch learning to be more open because of Poppy's influence.
Growth and self - discovery might be another theme. Both Branch and Poppy could learn more about themselves, their strengths, and their weaknesses through the events in the fanfics. This could involve them overcoming personal fears or learning new skills, which would make for an interesting and engaging read as readers watch their favorite characters develop.