I had this same problem before and my way around it was to add a black strip to the image right where the page title would be so it would stand out. Not sure if that is a direction you are willing to go, but it fixed my issue with the title not being visible. I had to play around with it for a little bit to get the positioning right, but it looked ok after that.
Maybe a while puzzle piece in that area of the image might look good still. Just a thought.
You could deploy this code into the place to resolve the issue on overview pages, or have it added to your theme.
text-shadow: 1px 1px rgba(0, 0, 0, 0.4);
Play around with the size and color to get the look you want!