Ok, I believe psuedo-jinchuriki resets are even more plausible. Good suggestion. I see no problem with this.
*Adds
I don't know if I can add quotes from other topics so I'll just put it here. Found this just now from a previous thread a while back.
"Just the thought of starting with a permanent Kyuubi makes me think that KG would be too powerful. Plus I don't think there would be hundreds of Jinchuuriki running around the Naruto world..."
1) Just because you restart with kyuubi doesn't mean it will be permanent, or that you will be able to use it to it's full potential or even go kyuubi-mode
2) It doesn't have to be too powerful. It could be like how it's presented in the show; a secondary source of chakra or boost in max chakra ( only available when out of original chakra, if you want) and/or a temporary buff in attack/defense and/or some minor attacks like when Naruto sometimes uses the chakra to attack, as seen in his CS-One tail fight with Sasuke way back when.
3) Just one reset wouldn't (and shouldn't) be "too powerful". Only a bit of chakra can leak through the seal at once, and one reset may unlock a max chakra boost, a second unlocking a stronger boost, a third/fourth/fifth giving a temp. attack/def. buff and maybe healing a bit like the kyuubi chakra tends to do
4) And there should be an option of using the chakra at a penalty, for example, losing max hp or just dying if over-used. If there was a 15 chakra kyuubi jutsu, for example, you could use it but you would take 100 damage per turn from your own kyuubi chakra, maybe 500 damage, lose 5 max hp per use, or lose 25-100% of your health and maybe or probably die.
4) We already have hundreds of EMS/Sage of the Six Paths/Perfect Sages/Special Kaguya/Mokuton/KG resets that are supposed to be unique and special, so if you would say that having multiple PSUEDO-jinchuriki is questionable, you might want to take a look at your own character which may have every single ability they never should really have in the first place. After all, you don't see hundreds of people running around with rinnegan/sage mod/EMS so I don't want to hear that special argument
5) If not, the KG could just be implemented as "Psuedo-Jinchuriki" and you just get a "Biju", no need to name it. You could choose to name it for 500-1000 DP in MHQ like your mount, and then choose your Biju name (could be based off one of the 9 in the series or you could make it your own, for fun or RP purposes)
So the Psuedo-Jinchuriki doesn't have to be Kyuubi, that was just for example. Like how Oro has kind of turned himself into a snake, you could kind of reset as a Psuedo-Jinchuriki with a sort of inner strength and call it whatever. It doesn't have to be a whole second kyuubi (though it would be cool if it was) and the attacks can be generalized if desired, or even custom-named like you can with your weapon and armor.