Which Nostr client has the best new user onboarding experience and why?

Needs to be multiplatform (at least Android and iOS). I am updating an older article on Nostr, which shows a client that no longer exists. Where should I point new users?

Preferably it should be able to scan QR codes with npubs - in that case I will use it also during a keynote to follow me and the conference account.

#asknostr