Microsoft Tech Community was created to have several user communities in one place, and gives you a platform to help with your Office 365 implementation, among many other things. For more information refer to https://techcommunity.microsoft.com/.
To get started, visit the website at https://techcommunity.microsoft.com/t5/Getting-Started/bd-p/Day1Guide.
At the time of writing this, Tech Community is the fastest-growing central community of IT professionals, developers, decision makers, and so on. Please join. I'm available at the community to help. You can follow me at https://techcommunity.microsoft.com/t5/user/viewprofilepage/user-id/50.