Well, if you are here then you have arrived at a new community for the Solo brothers, Jacen and Anakin. Yes, I know one of them is dead and one is on his way to being the new Sith Lord...but that's okay. We'll make do. Anything about the Legacy of the Force series of novels is okay, as are earlier series featuring the characters. That means that as much as you love Jacen and Anakin, if you get the urge to write about Jaina or somebody else as the main character in something, that's fine as long as at least one of the brothers plays a part somewhere.
The community is pretty bare right now but hopefully that will change soon. For a beginning the community will include fanfiction and discussion. Is it okay to ask questions? Definitely yes, as long as it pertains in some way to the Solos and those they've come into contact with. That means if you want to ask something about their uncle Luke or cousin Ben or so-and-so that they trained with years ago, that's fine. If there's something you'd like to see included in the community, ask about it, and we'll see what we can do.
Be careful about your fanfiction, and especially any artwork and pictures, LJ's stand on "suitable" content is kind of murky. If the brothers or anyone else is under the age of 18...they're not supposed to know about or participate in anything of a sexual nature. I know it's stupid and unrealistic but that's how it's to be for now. Now we all know that the younger brother, Anakin, passed on at the tender age of 17. But that doesn't mean you can't do an AU story where he miraculously survived, returned from the dead, or just never had the misfortune to die in the first place. Then he can cavort with whoever he pleases as long as he's of legal age, just be sure to put informative ratings and warnings on your stuff about it. If you're unsure about something being okay, ask and we'll work it out somehow.