Options for managed clients

The trade association I work for has a number of smaller regional affiliates. Most of these are small offices, with maybe 10-15 employees. My IS department has been asked to possibly take over the basic IT functions for some of them, and I am wondering what the current thinking is on managing these types of small environments. They are mostly using Google workplace and local file servers. Almost everyone already has a laptop, and a lot of them are out in the field a lot. Azure AD looks tempting to me, maybe combined with shifting their files to Drive. What do those of you who manage multiple small environments suggest if you are starting essentially from scratch?