Perhaps Naruto Nara could take over Yakumo Kurama training.  She may not be able to be a Shinobi, however she may be able to do other things.  For example, his sage jutsu maybe able to help her overcome her illness.

He could also teach Naruto.  With Jiraya gone, who will teach him?  Also what is to stop the nine tail fox from running lose?  Naruto isn't yet strong enough to control him it.  Though perhaps Naruto should make a pact with it.  But he does have the Frog Sage.

Also there is one in the Star Village that could use Naruto Nara's training.  The one who walks with a cane.  Naruto Nara perhaps could use his sage jutsu to help him also.  Maybe he could come and train at the Leaf Village.  This might improve relations with between Villages.  So then perhaps Naruto Nara should focus on other students for the time being.

Also the Heir of the Forbid Jutsu could use his sage jutsu.  She may well be able to rebuild his clan if she knew it.  Yakuma Kurama, the cripple from the Star Village, and the Heir of the Forbidden jutsu of her clan could form a squad.  This squad could be under the direction of Naruto Nara.  These three could perform a combination barrior jutsu.  However, this would require that they be in synch with each other's energy.  They could be under the barrier corps.  Naruto's Nara's training as a scout may come in handy here.  The four of them could form a pentagon barrior.  However, it would have to be pretty strong to stop a tailed beast.

Naruto Nara could also work with Choji, Oni, and Hinata when he isn't working with his squad.  They would benifit from his sage jutsu.  Chika himself mentioned he was worried about Choji, Oni, and Naruto.  Personally, I think Lady Hinata's is as a woman ought to be.  She is kind, gentle, but also able to fight when necessary.

One thing is I think the Aburume clan ought to use their insects to fertilize crops.  That way they would be in demand of their services.  Indeed, they could do missions while they perform this function giving a cover for their shinobi activities.  It may allow them to operate in areas others may not.  Personally, I would like to make a pact with bees myself.

With Lady Tsunata, she must remember it is harder to live for someone then to die for them.  She must not throw her life away, haphazardly.  Of course, Naruto Nara could bring back her former lover, Nuwaiki, and Jiriaya as her daughters.  But what would he get in return?  He has brought back others, so why couldn't he bring others back?