Jefe Bergenstein
Legend
Giving them Cantrips seems like a great idea. What would be the most logical list to chose from: Druid?
Druid, though I could also see some wizard. In 1E they had both druid and wizard spells. Because these guys traveled solo, they had to know a bit of everything (like a bard). I think druid plus minor illusion and maybe a few others would be good. Minor illusion is really good at helping set up ambushes, sending signals (project a 5 foot long glowing arrow 30 feet in the air). Do druids get message? Definitely add that if not. The lack of cantrips on rangers/paladins seems an unusual design choice, as they really do go a long way to adding flavor to the classes.
Some of their individual spells could probably use a boost in damage to avoid just constant hunter's mark spam.