Ok how in a friend group say that your guy friend is not your type without being rude?

ok i was out with 2 of my guy friends and I asked them to recommend some of their friends as a boyfriend the one that's in a relationship recommended the other one that's single, I ABSOLUTELY hate him as a partner and even as a friend he's so boring and he's so not my type and not at my level even I'm sorry
I don't know how to say it in a none rude way so they would stop, because I can feel it he has a crush on me
Ok how in a friend group say that your guy friend is not your type without being rude?
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