Heading to Nepal on a short work trip (never been before) and I'll have exactly one personal day to spend in Kathmandu.

I'm a woman biz traveler in my early 30s - travel a bunch for work, so pretty street smart, I hope/think?! - and I usually am fine planning my own "free day" so to speak. However I'm thinking I'd like to do a more structured "tour" or similar when I'm in Kathmandu as it's going to be at the very end of a very long work trip all over Asia, I'll be tired by the time I end up in Nepal, and I don't want to have to think too hard about where I'm going, how to get there, safety, etc.

Can anyone recommend any one-day tours/tour operators? Or companies they've used before for something similar in Kathmandu? Would love to hit the "famous" stupas (even if just for a quick stop) and see various parts of "must-see" Kathmandu.

(Yes, there's the "hire a driver and do it yourself" option, but hoping to make this easy on myself...). Searched the forum but didn't see anything.