What is a good upgrade for my Olympus Pen E-PL7? I am looking for a more compact M43 Camera.

[iKokomo]

When I am on vacation, I like leaving my larger camera behind.

I am familiar with and like the E-PL line as it takes great pictures at a small size.

I was wondering what a good upgrade to this camera would be? I have read that the E-PL10 is not much of an upgrade, however, the Olympus PEN-EP7 is impossible to find or very expensive.

I am not tied to Olympus, but I do not know much about the Panasonic line, so I am open to it, but I am not sure what the equivalent Panasonic is to the E-PL line.

I am just looking for a smaller, M43 camera that I can put in a small bag and explore.

Thank you very much!