Quote Originally Posted by tyckspoon View Post
It's just spell slots? No reliance/reference to spell or slot level? Forget Sorcerer, be a Wizard. Fill all of your level 4+ slots with (Rary's) Mnemonic Enhancer. Use the 'prepare more spells' version of it to prepare 6 Cantrips per cast. The limits to this are a: the number of instances of Mnemonic Enhancer you can get access to, and b: the time you have to cast it, as the spellslots created by this explicitly fade after 24 hours even if not used. The Rapid Spell metamagic can get around a lot of that, reducing the cast time to 1 minute from 10 and allowing you to pack way more casts into whatever your permitted prep time is.
Twin spell, repeat spell, and Echoing spell are great for this. Especially echoing spell.