Active since Apr 2020
WordPress has unlimited options with plugins for almost anything and easy expandability as you grow. The community is also very strong and will support you no matter your level of expertise. While WordPress is free and very flexible it does require time to learn best practices and money spent on solving your problems properly. It's important not to fall victim of inferior work, so learn the best practices by asking the community.
Everyone has used Dropbox and understands it's simple user interface which makes it easy to deploy in any business. The team management looks simple but is actually quite powerful with features like shared team folders and just general shared files with comments is helpful. However, Microsoft IAM is not supported and users need an account with Dropbox to be able to collaborate.