Either the 642 or PM9 will do.
I have both types and at any given time I am carrying one or the other or both, usually in pocket holsters.
After work and at night while around the house, I often wear gym shorts and a loose shirt. Or sweats. Then I wear a belly band under the shirt. It holds either gun, and I don't need a belt.
Either the 642 or PM9 will do, but I lean towards the PM9 because:
1 - I can switch to the 7-shot mag that I normally carry as a reload; and
2 - The belly band holds a spare mag, so the 6-shot mag goes there. It won't hold a speed loader and is kind of iffy with a speed strip.
That's become pretty much my routine at night. I wear it 'til bedtime, not just to take out the trash.
If I happen to have had my 642 out but not my PM9, I put the 642 in my belly band.