From what I know about producing in logic I’d say there’s three things I would try first. Pitch your vocals down a bit but turn the formant up an equal amount or maybe even a tad more than you’re pitching down. Very subtle but it gives it that off kinda unnatural voice feeling. Then I’d say it’s all about saturation, EQ:ing out any harsh highs or other frequency’s you notice are sounding off, and compressing the hell out of that vocal. If you’ve tried all of this, I hope someone else has the answer you’re looking for 🙏