I can't think of any troons that both pass and while also being "sane". I think in terms of passing, Jazz Jennings is someone who I wouldn't clock in real life. He looks like a (morbidly obese) woman and sounds like one. He isn't sane in the least though, he's understandably mentally stunted after being abused for years as a child and being surrounded by groomers and SJW politics. Who knows how long he will pass though, he's been growing recently (See thread).
I used to think Blaire White passed back in the day, until I saw candid photos. He doesn't pass at all.
Honestly, I can't think of any. TBH, I feel like all the overexposure of troons has made clocking them much easier. I used to think Aidens passed pretty well, but now I realize they really don't pass either. They might look okay facially, but then you see their short bodies, tiny little wrists and hands, combined with the typical T-frog voice, and instantly you just know it's a woman.