Any worth WhatsApp alternatives?

I think all of us already know about the latest WhatsApp privacy policy changes. And I'm sure that many already refused from that app. But what should we choose?

Signal so much promoted by Elon Mask faces troubles getting so many new users. Telegram can be deleted from Apple Store for its numerous channels they don't ban. Moreover, both of these messengers require a phone number during the registration, which is not safe also.

I've seen a Utopia p2p alternative…

Any worth WhatsApp alternatives?