Anything USB C will be compatible, although if it's under 65W it may just make it run out of battery more slowly, I'd just grab whatever Anker are selling that does 65W. A very brief bit of research makes it seem that all USB C cables can handle 60W but some can do 100W which I guess you'll want.
I am after a USB C charger for my work laptop so I can tidy up my WFH setup by powering my UBS hub.
Dell website lists a 65W USB C adapter that is compatible with my model.
Dell 65-Watt USB-C AC Adapter - UK | Dell UK
Can I just grab any reputable 65W USB C charger?
There’s a label on the bottom that says 19.5V / 3.34A in case that makes a difference.