Amazon.com: USB C Power Bank RAVPower 26800 PD Portable Charger 26800mAh(Faster Recharged in 4.5 Hours &USB-C Input, 30W Type-C Output)for Nintendo Switch, USB Type-C Laptops, 2016 MacBook Power Delivery Support: Cell Phones & Accessories
Not as good as $59 while back. but still better than full price.
This is the best price I could find for PD usb C charger capable of charing Macbook pro, nintendo switch and alpha switch two in one.
Also just below the 100 wh limit allowable on planes. Not sure if they still allow these nowaday since the new rules on laptop.