A really popular Blair and Chuck fanfic is 'The Empire of Their Hearts'. It shows their journey from being rivals to lovers in a very detailed and engaging way. The author does a great job of writing their dialogue, which feels very much in line with their characters on 'Gossip Girl'. There's also 'Chuck and Blair: Forever Entwined' which focuses on their relationship post - show, imagining different scenarios for them.
Characterization is key. A good Blair and Chuck fanfic should have them act like they do in the show. Blair's strong - willed, sophisticated nature and Chuck's charming yet brooding persona need to be spot - on. For example, if a fanfic has Blair cowering at the slightest problem, it's not true to her character.
Well, Blair and Chuck themselves are often very well - written in fanfic. Writers can really dig deep into their complex relationship and individual personalities. For Blair, they can show her strong - willed side but also her insecurities. As for Chuck, his growth from a playboy to a more committed person can be explored in great detail.
One interesting plotline could be Blair and Chuck facing new challenges in their relationship that are different from what's shown in the original series. For example, they might have to deal with a new social rival who tries to break them apart.
There's also 'Chuck and Blair's New Beginning'. This fanfic takes a different approach. It starts with them in a new city, away from all the drama of the Upper East Side. They have to build their relationship from scratch without the influence of their families and the gossip mill. It's a refreshing take on their story.
Serena is often a popular character in these fanfictions. She might be Blair's maid of honor and get involved in all the pre - wedding drama. Nate could also be a prominent figure, perhaps as Chuck's best man, and his relationship with other characters can add more depth to the story.
I'm not sure about the single 'best - known' author as there are many talented ones. But some of the more popular ones are those who have been writing for a long time and have a large following. You can often find them on fanfiction platforms where they get a lot of reviews and favorites.
One popular theme is their complex relationship. Fans often explore the push - and - pull dynamic between them. Another theme is their rise in the Upper East Side society. Also, their personal growth and how they overcome obstacles together are common themes.
One great Blair and Chuck fanfiction is 'The Redemption of Chuck Bass'. It delves deep into Chuck's journey to become a better man for Blair. Another is 'Blair's New Beginning with Chuck' which shows their relationship after overcoming many obstacles. There's also 'Chuck and Blair's Paris Adventure' that takes them on a romantic escapade in Paris.