There are no chargers on the market that have multiple ports and over 100W output across those ports, so you are pretty close just plugging the MBP in and the o

There are no chargers on the market that have multiple ports and over 100W output across those ports, so you are pretty close just plugging the MBP in and the other devices into the MBP ports. With PD 3.0, I believe manufacturers now have the _capability_ to do what you are talking about, but I don't know of any products yet. FWIW, the closest I've seen so far is Hyppr's 100W 2-port charger. I use this in my bedroom to have a phone/watch charging stand and a free USB-C cable for the iPad. However, it does a straight 45W split with two devices attached - neither the charging stand nor iPad need 45W though.