I struggled to gather resources on exporting for Steam and aspects related to that process. Of course there are different resources out there but a lot aren't specific to Construct -> Steam. Others are out of date or don't cover all options or troubleshooting I came across.
In fact, I just posted here before I read this post. So still have things I need to look into.
On the same note anything related to NWJS I'd read as I need to gain a better understanding now that I'm having to troubleshoot these issues.
As for the other topics you've mentioned I'd be interested in the more boring type of ones, ha, that a lot of them deal with organizing data, which can always find tips to help out in those areas. So such as menus, RPG system, city builder.
I've used Arrays, Dictionaries, Local Storage, Scripting, and such plenty to store/organize data, but seeing which route you would go to setup the above mentioned systems would interest me.
Also, Advanced AI and various effects, as I rarely use any of the built in visual effects in Construct.