There is one buff I do feel Kindred really needs, and I'd take almost any nerf in compensation.
Naturally, I don't want any champion to be op. So if getting this buff and no other changes would make Kindred op, then yes, nerf her as well. This particular buff is something I want for Kindred so much that I'd happily take pretty much any nerf as the compensation change.
Make it so that the enemy team can't see jungle marks. Letting the marked champion know Lamb marked them is fine, but the enemy simply should not know which camp Wolf marked.
See, I'm one of those players who doesn't need a victory screen to enjoy a match. (That doesn't mean I'm not trying to get it. The fun is in the attempt to win, so I make the effort, I just don't need to be successful to have fun playing the game.) But Kindred, regardless of whether my team wins or loses, ceases to be fun if the enemy team understands the jungle marks and acts accordingly.
If you'd like another point of reference as to where I'm coming from, here's a link to a rant thread I made a while ago where Kindred was the example. But do bear in mind that it is a rant thread I placed in the rant subforum. This thread however, is not a rant and is 100% serious. https://boards.na.leagueoflegends.com/en/c/rant/BYpXYIJK-the-fun-of-some-mechanics-is-too-tied-to-your-enemies-being-bad-or-your-allies-not-being-bad