Well Sorcerer can spend Sorcery points on Twin or Quicken to cast Booming Blade. If in range of two creatures, you can twin Booming Blade to hit both, then use War Magic to make an attack as a Bonus Action. If in range if just one, Quicken to cast as a Bonus Action, followed by multiple attacks from EK as an action.

Sorcerer also opens the Divine Soul bloodline, which adds some versatility to your spell list and lets you back-up heal. Furthermore, in pen-and-paper, Divine Soul lets you grab Thaumaturgy as a cantrip, which can be used to dim lights for 1 minute without concentration, which is enough to trigger advantage from Shadow Blade, and in turn Elven Accuracy, which is neat.