If you are an Oracle Cloud customer or a partner, or are considering becoming one, or if you are just interested, you should check out the Oracle Cloud Marketplace. It follows the type App Store type model that you are probably familiar with, but this is for cloud based enterprise apps.
I am always inspired by the innovation that comes from the Oracle partners, it drives me to try and keep innovating in the products Oracle produces and that is how the ecosystem should work. I see a lot of content on their already and I plan to try out some of the free apps over the next days and weeks, maybe I will do reviews of anything I find particularly interesting. However you shouldn’t wait for my reviews, get over there now and check out the content, post in the comments to discuss what you find.