Here’s a link to a playlist of tranquil violin music. We could do worse than emulating this guy – he was one of my favourite violinists when I was a kid: Christian Ferras.
Violin for an Afternoon Soiree by Rachele Wildmare (Youtube playlist)
For some other, entertaining youtube clips, see https://violinlessonssydney.com/violinarium/ – includes electric violin & beatbox, Dubstep violin by Lindsay Stirling, and multi-tracking with loops by David Garret on his Stradivarius violin!