As a happy user, I can recommend Airtable. Here's how we use it: I manage about 100 people. We use Airtable to keep track of employees and all their information, in a little database. It's so much better than pretty much any HR tool out there for that, because it's flexible and super easy to evolve over time whenever you have a new need. For example: hey, we should keep track of who reports to who. 10 minutes of setup, and DONE. And unlike Excel or Google sheets it's a database, so things are MUCH more organized and we have 1 source of truth.

Highly recommended.