Learn - "Come Thou Font" on Dulcimer Guitar / Seagull Merlin
I LOVE this version of Come Thou Font, it is very easy to play as it is all in one octave and using one finger. You can always spruce it up, so there are a few suggestions for that, but I think this one works for all skill levels.
I am using my own instrument, cherry top, purple heart fretboard which is in production for 2023, I call it the "Model 1 River Guitar" but that's a work-in-progress, like so many things in life ;-)