The font used in PocketReader (also on Itch) works well. It’s chunkier without being overtly bold or semi bold, which is how I understand the titles in PlayNews to be. I like the way you currently have it where the titles are a different font-weight to the body text.
Looked at PocketReader and they seem to be using Sasser-Slab which is the same font I use on the title (but the article title is always bold). This is how it'd look as the article content font. I could add an option to select the font if that would be useful.