Spellcasting ability help

I’m cooking up a build and I was wondering if anyone here could help me get around a problem I’m facing. Can anyone think of a way to get a first level wizard spell with Charisma as the spellcasting ability? Specifically the spell Jim’s Magic Missile from Acquisitions Incorporated. Alternatively, if possible I could also make use of Eldritch Blast with Intelligence, but that one I don’t think is possible with official materials.