Imagining a canon-timeline au where the alpha who would have been Itachi's mate had he lived realizes as they mature that they should be taking care of his younger brother in his stead, and becomes half the reason Sasuke isn't prosecuted for treason when he comes back to Konoha, and is also somewhere in the line of the Nara clan.
Sasuke: being depressed in prison
*loud noise somewhere*
Itachi's alpha: Let me in! *followed by a very stressed looking Sakura and a sort of ruffled looking Naruto*
A warden: What is all this noise?!
Itachi's would-be alpha: You have to let me see my client
A warden: What client??
Naruto: What client? What are you??
Itachi's would-be alpha: I'm a lawyer as of about ten days ago. I've taken the ninja equivalent of the bar and also quit being a shinobi so i'm not sure about the exact wording of those credentials, but I demand to see my client!
B warden: Does our village do criminal lawyers?
Itachi's would-be alpha: Alleged! criminal lawyers. I'm noting down that you have called my client a criminal when he has not been through trial!
Sasuke: *starting to get a headache*
B warden: He is a criminal!
Itachi's would-be alpha: How many crimes that the village recognizes as crimes did he actually commit?
A warden: *opens mouth closes mouth*
Itachi's would-be alpha: Exactly. You can't make assumptions based on the bad reputation of the term "missing nin". It's not good law.
Shikamaru: *has just caught up because he will Not run unless he has to* I'm very sorry for my cousin. Please let them in to see Sasuke.
Naruto: You have cousins! That's cool!
Sakura: You have cousins? I thought the Nara only bred in singlets
Shikamaru: *sighs*