What should be my 2nd Class?

Finishing off the last of Act 1, and I'm thinking when I hit my next level mark, I wanna multiclass. I'm only a few good fights away from level 7. I am playing a wood elf oath of devotion Paladin, and I've got pretty high strength rn. Basically playing her as a tank healer.

Any suggestions? I'm leaning toward sorcerer, but id love some opinions.