I'd prefer Jacoby over Jacobi. I'm wondering how you're saying it, since I'd assume Jacoby is JAK-o-bee or maybe even ja-KO-bee, but Jacobi looks like JAK-o-bie to me.
Out of your combos I like Jacoby Miles and Jacoby Quentin most. Jacoby Sincere is pretty bad...
Out of your special meaning ones, I like Jacoby Tate best, because it flows best,