Nintendo Switch DOCK/Charger Base
BinBok Switch Dock,
An extremely Light/Portable HDMI switchable Docking Station
& Charging Solution Suitable For Nintendo Switch. (Original/OLED)
Fully Compatible and "Useable Whilst Charging" Dock/Replacement.
Compact Dock Switch For HDMI Output with USB 3.0 / 2.0 Ports
(Requires Your Original or a Suitable USB-C Power Supply)
Whilst your original charger works perfectly fine on this, Just like the original dock, most USB-C chargers won't.
I am personally successfully using This Charger on this DOCK in Both Standalone & HDMI/TV output modes without issue.
Whilst not quite as powerful as the original charger (which is both expensive and hard to source) it does the job.
it does take longer to fully charge, especially when switch is in use.