Fanfiction.net is also a popular place. There are a lot of HTTYD fan-written stories there. However, the interface might not be as modern as AO3. But it still offers a great number of fictions for you to explore.
Some Tumblr blogs might also share or recommend HTTYD fanfictions. You can search for relevant tags like #HTTYDfanfiction. You may find some great stories shared by fans, and sometimes they might even link to other platforms where you can read the full fictions.
Another option could be Wattpad. While it has a wide variety of content, you might be able to find some great HTTYD2 fanfiction related to HTTYD there. It's important to note that the quality can vary, so you may need to sift through some stories to find the really good ones.
Some dedicated fanfiction forums might be a good source. These forums are often centered around the HTTYD fandom. Members share their own fanfiction works and might even have some in the form of audio - visual presentations that can be 'watched'. For example, FanFiction.net has a section for HTTYD where you could potentially find relevant fanfiction in a viewable format.
Some fan-made YouTube channels might also have readings or reviews of HTTYD 2 fanfiction. However, make sure to check the legality and the quality of the content. Another option could be specialized fanfiction forums where users share and discuss their works related to HTTYD 2.
As I mentioned before, Archive of Our Own and FanFiction.net are good places to start.
Well, in the real world, it's not possible. But if we were to think in a more creative, fictional sense, like in a meta - story where the httyd world intersects with our own digital or written realm in some magical way, then maybe. But generally, no, as it's just a fictional entity without the physical or mental faculties to do such a thing.
You can try looking for 'HTTYD and Rise of the Guardians' fanfiction on websites like FanFiction.net or Archive of Our Own (AO3). These platforms are popular for hosting a wide variety of fan - created works. Just search for the relevant tags or keywords on the site, and you might find some interesting crossovers between these two universes.
Yes, it's possible that some Vikings enthusiasts might also be into 'How to Train Your Dragon' (HTTYD) fanfiction. Since both Vikings and HTTYD have elements of adventure, dragons, and Norse mythology, there could be an overlap in the fan bases. Some fans of Vikings might be curious about different interpretations and stories in the HTTYD fanfiction world.
Yes, he might. Hiccup is a character from 'How to Train Your Dragon' series. If there is an interesting HTTYD 2 fanfiction out there, it's possible that someone could imagine Hiccup reading or being involved in it in some way in the context of fan - created stories.
It's hard to say if it's common. Since Valka is a fictional character, we don't really have data on her fictional reading habits. But in the context of the fandom, it could be seen as something that would be cool if she did, as it would show her interest in the fan - created content.
Archive of Our Own (AO3) is also a great place. It has a very inclusive and diverse set of fanfictions. Just search for 'httyd hiccup and astrid' and you'll get a bunch of results. The site also has good tagging systems so you can easily find stories with the elements you like, such as adventure or romance.