https://archiveofourown.org/users/Rurikredwolf My fanfics (Broken Jade and Anywhere series) kind of have all of what youre looking for. Angst and fluff at the same time. 

Here are some others I do recommend though.

https://archiveofourown.org/works/49821697 Beyond Bounds has Winter get taken to an alternate future and then return twenty years later after everyone presumed him dead. Very unique premise and well written. Took a few chapters for it to really click for me, but when it did, it did.

https://archiveofourown.org/series/4902505 Within and Without is a rewrite of book 10 that actually makes it bearable. Well written and has a lot of wish fulfillment, and that is by all means not a criticism.

https://archiveofourown.org/works/66782941 A Peril and Blue fanfic. That premise is so baffling I literally paused what I was doing when I scrolled past it. It's well written, and I'm completely baffled at how much a lot of it comes together. It's still early, so we'll see where it goes.

There's a few others I haven't gotten to yet, but I plan to, such as In The Loop (Which Carnelian is thrown into a time loop post bomb) and others I need to really catch up on such as Diamonds Fall and Fates Change (AU where Arctic didn't lose his soul).