LANDR, known for its AI based mastering platform has expanded this to offer wider set of services which includes (as well as mastering), distribution service, samples, free plug-ins, video streaming/meeting, storage for file versioning and collaboration, plus the new LANDR Chromatic app (Win/Mac OS) loop based sketch pad/DAW. You also get a selection of free plug-ins and Vocalign Project5.
Samples are run with a sample credits system - the LANDR Studio subscription starts at $19.99/month but drops to $12.50/month when paid annually up front and comes with $1000 worth of extra bundled plug-ins.
You can also just opt for individual services with annual or monthly plans available for all.