If it uses the standard USB C cable (most modern laptops do) then you could get the Ugreen Nexode Pro using GaN technology.

Rolling Square Supertiny GaN Charger. Although it only has 65 W, it is so "supertiny" that you can always have it with you. The laptop never draws the maximum power in normal operation anyway. Charges more slowly, but is much more practical due to its small size.

I use the Aukey OmniaMix II. Port C3 is 100W when used alone.

Any USB C charger should work. After that, it's a question of charging speed... 90 watts is recommended, below that the charge time is slower, above that faster.... Ask a specialist. Original chargers are available from asus, compatible ones from any electronics shop. Otherwise, google "asus charger 90W", lots of options are available for usb C