Sword and Board is not an option unless you're using your spell slots exclusively for smiting.
You need a hand free for spellcasting. Before any one claims "but that's what War Caster fixes". Nope, no it doesn't. War Caster let's you ignore Somatic components. You still need a free hand to access Material components, or if you're using some kind of implement, a free hand for that implement.
You can only cast V, S spells if both your hands are holding weapons.