heavenandearthtranslations.tumblr.com might have some.
ladygt has a short comic it's the first thing you see on the NS tag on tumblr. she quit but there are many others
operadeglace has a comic which is similar to 699 except it's more narusakuish, and a fanfic where shina grows up in suna and comes back(it hasn't been updated in a year though)
pumyteh, rebelliondou, kirabook, also are active in the 'ns-anti-ending' fandom on tumblr. on ff.net thesaiyanjedi has over 10 fics and the only writer that is active more than once every full moon. Shina's first adventure is not a masterpiece but an alright read if you're down, and kudos to him for always updating regurlarly.
st. concertina and lindenbay have very well written fics, but their hiatuses are quite long.
ODG is actually currently working on the next chapter for the fic.
There is also another fic with Shinachiku in the works, called "Home" by 'shinachiku-uzumaki'.
That said, my personal favourite alternative ending story is probably "Lifting the Dream" by 'HawkofNavarre'.
It's not 100% perfect, but it comes actually pretty pretty close to it. Plus the author fires a few not-so-well-hidden shots, that lighten the mood while reading it ;)
There are quite a few other fics, but this is in my opinion the best one, till I find a better one or a better one is written^^
There is also the alternative-The-Last doujin going on by Tokai2000, which has it's own thread here.
Edited by Aevrum, 01 May 2017 - 02:00 PM.