A Victron 100/20 will be too small for two 190 watt panels, and has a small bus that’s hard to keep wires installed.
We used the Victron 100/30 for the 470 watts we had on the roof of our 5.0 and will work well for 380 watts on your roof. I have no problem with the bus on the 100/30.
If you anticipate adding another panel you may want to buy a Victron 100/50. We’re currently using the 100/50 for 600 watts of panels on our current camper.
Enjoy,
Perry