I was thinking primarily for the bonus elemental damage from the sorcerer tree. Although I just realized I should be able to pick the three fire spells at 3rd level monk. I'll probably do that, then level sorcerer for a bit. At some point, I'll want 5th level monk for bonus attack. And I could go 7 Sorc/5 Monk for the 4th level spell.
Just FYI, I'm working solely off the table in the wiki. I believe I read some of it is copied straight from 5e without any regard to the game, but I don't have the exact details because I don't play DnD.
