Any USB C PD (Power Delivery) charger should work fine. They support up to 20v output (part of the standard). You'll just want to get the wattage for your charging needs. That laptop uses a 65 chargers, so you'll probably want to get something with around 65 watts (a little under is even fine). However if you plan to charge multiple things at once, then you'll need something with more watts, probably 95 watts will be more than enough to charge a laptop at full speed and a tablet or phone.
This RavPower 61 watt charger for example has a USB C and USB A port to charge your laptop and phone, tablets, or headphones together. If used just for the laptop it'll delivery 61 watts, which is more than likely going to be plenty with that laptop, just charges a tad slower than 65 watts. But it'll drop down to 45 watts if charging a phone. Also probably still fine with that laptop though possibly may not charge it fast enough if you are doing something heavy duty on the laptop (meaning laptop might use more battery faster than the charger can keep up at 45 watts).
Another look looking RavPower universal charger, this one has 4 ports. Again, laptop charges at 65 watts by itself or 45 watts if other devices are charging too.
And this 90 watt one will charge a laptop at 60 watts and phone at 30 watts together or the laptop alone at up to 90 watts.
Just a few examples. Other good brands out there too. You don't need to worry too much about anything other than watts really. The USB C standard covers the different voltages and amps the devices needs. Though I think some phones may not potentially charge at maximum speeds with these universal chargers. So they may charge at only 10 watts instead of 25 watts for example. If you want max phone charging speeds you'll probably need to check the device compatibility of the charger for that phone. Though it will charge any phone at 10 or 15 watts most for sure.