Well ever since finding out when The Lion Guard was set I know who I have wanted Kion to end up with
Although this is a particular area where I feel that being a Disney Jr. show will likely hold the writing back. I am not sure how much they will actually want (or be able) to go into the topic of romance. Then again Lion Guard has really pushed the envelope with what a preschool show is willing to do. Especially this season. Keeping that in mind, let's assume that they do tackle the topic of romance. Here what I think of every possible love interest for Kion. most of this will will likely echo what has already been said:
Jasiri: Out of all of Kion's potential love interests Jasiri is the one that comes the closest to openly flirting with him. However as has been stated the difference in species is insurmountable. It would defy the Circle of Life and defeat the purpose of The Lion Guard.
Tiifu or Zuri: I hate to lump these two together, but the end reason for either of them not working as a love interest for Kion is the same. Zuri is too self absorbed to care for anyone other than herself and she seems to have a genuine disdain for Kion. Tiifu at least has a softer heart, and at is at least capable of showing concern for others. Although there are also times that she seems very clueless in general. The biggest obstacle to a relationship between Kion and either of these (I assume) sisters is the fact that Kion sees them as being like family because they are his sisters best friends.
Fuli: There seems to be what could be considered flirtatious banter between Fuli and Kion. There has also been more than one occasion when they have demonstrated great concern for one another. Although those reasons mentioned could just be signs of comradery and a deep friendship between them. Also despite the fact that they are both cats, there is still the fact that they have the species gap between them (as much as I wish I could ignore this fact in Fuli's case). The fact that they are also teammates
could cause problem for them relationship-wise.
Vitani: This is what I'd most like to see happen. Despite the fact that Kion ultimately used The Roar on her when they first met. Vitani would be a great match for Kion personality-wise. They are both a warrior type. Similar to what Panpardus said I could easily see Kion And Vitani having a (Target audince appropriate) chemistry that is similar to the dynamic between Batman and Catwoman. I think that Kion And Vitani could have a permanent (if
highly complicated) relationship. There is also the fact that Panpardus mentioned. It would add more weight to Vitani switching sides at the end of Lion King 2. I can't see a downside to this parring. I could easily see them together if we ever get a post Lion King 2 movie.
An Entirely New Lioness: This is a very realistic possibility. She could be a Crown-Princess from another Pride. As such that could provide the writers with a very easy way out of the Where was Kion (and everyone else) during the 2nt half of Lion King 2 question.