Telegram for family, friends, work and actually for everything I can think of.

Discord for gaming with friends, not as a messenger but as voice comms mainly.

Whatsapp for very legacy stuff, haven’t had a notification in a couple of years. Maybe it’s time to uninstall, finally.

FYI you don’t need static IP for telegram bots if you use polling instead of webhook. So if your house connection is stable enough, you can make do with Raspberry Pi.

I’m hosting my stuff on cheapest DigitalOcean droplet (but still use polling for telegram bots). Any stable VPS provider would do just fine and you’ll have system resources left for other stuff, telegram bots are very light.