If you are looking for networking options that do protect your privacy, you might take a look at MeWe.com. You won’t be bombarded with advertisements either. MeWe operates as a “freemium” service. Every user receives 8GB of storage (for photos, videos, files, etc.) at no cost. Should you need more, you can add it via an in-app purchase. Other paid services include Secret Chat, custom emojis and more. MeWe also supports groups and there are a number of groups focused on genealogy.
The genealogy groups I joined are quite active. It’s easy to start a conversation or ask for help. Take a look at MeWe. I think you’ll be pleasantly surprised.