I'm looking for apps to feature in my newsletter Practicing Google, which provides weekly practical resources on Google products and related tech. Each issue has a link to an Android app and one to a web app or SaaS.
I'd like to feature also indie apps and you're welcome to submit your own.
It's probably easier to say what app categories I'm not interested in:
Android apps can be paid, as long as the one-time purchase price is below a dozen $ or the lowest subscription tier is under about $20/year. It's a plus if the apps support Chrome OS and are optimized for tablets and large screens.
As for web apps and SaaS, they can be freemium but should have a free tier (no trial). It's a plus if web apps or SaaS integrate in some way with the Google ecosystem such as by letting the users sign up with a Google account, access photos in Google Photos, save files to Google Drive, or back up data to Google Drive.
I'll be happy to check your apps but I may decide not to feature them if they aren't a good fit for my newsletter. Also, I include one app of each type per week, so it may take a while to feature the ones I do pick.