Professors: When a postdoc candidate emails you, do you prefer a quick intro call or just a CV?

I’m currently looking for postdoc opportunities and plan to reach out to professors internationally next week.

I want to ask professors who have had people reach out, do you prefer when a candidate reaches out:

1) A short email asking for a quick 10-minute call to discuss potential fit?

Or

2) An email with CV attached and a brief overview of research and accomplishments?

Directly sending CV seems too forward, and I’m worried it may get me less replies.

I would highly appreciate any guidance or comments.