CalDigit SOHO Dock is the right choice.

Yes, get the CalDigit SOHO Dock.

It’s not the cheapest, but it’s the only one I’ve seen consistently work without issues on MacBook Airs. PD charging is reliable (100W input—more than the Air needs, which means headroom), and the HDMI port drives a 4K display at 60Hz without flickering or signal dropouts. The build feels solid, and it doesn’t get annoyingly hot like some Anker or no-name hubs.

The cheaper alternatives (Anker 555, Satechi, random Amazon brands) usually work, but I’ve had enough friends text me about random disconnects or fried ports that I’d spend the extra twenty bucks. Especially if this is for