Is a macro lens a good portrait lens?
Dedicated macro lenses typically have a flat focus field, which means the “in focus” plane doesn’t curve like a non-macro lens, but instead stays flat like a poster on the wall. In short, they are typically well-corrected for this, as well as contrast and flare. What this adds up to, as well as the detailed nature of a macro lens, is something that is quite sharp and might not be suitable for portraits as it will show the flaws in people’s skin, blemishes, etc. Shooting on a crop sensor like yours, the 60mm will make a nice framing perspective. Just be aware of the focus field to emphasize what you want to, and recognize that some portraits look better when they’re NOT so sharp.