I'm sure there's a wide diversity of MBTI and enneagram types represented among those with Asperger syndrome. IxTx is probably most common. I think INTPs are somewhat more prone. Enneagram wise, I think type 5 (esp. 5w6 sp/so) would be most common followed by type 6. Type 5 is typically introverted and comes across as unemotional and often absorbed in their specialized niche interests.
5w6 or 9w1 sp/so/sx, I think
People with aspergers may be more inclined to a certain type, although it is possible that they just appear to be that type. But it is possible for someone with aspergers to be any type. For example, I have aspergers and I'm an ENFP!