There's plenty of alternatives to Amethyst. Nostros is excellent. Plasma seems to be moving along somewhat slowly but has the potential to be a great choice as well. Amethyst is no doubt very popular but can be very laggy and unusable on some devices.
Discussion
Yeah I like Nostros too, Plasma never tried, I will give a look to it.
Indeed the great things about #Nostr is exactly the infinite "portability" of our keys and identity on every client. Still underrated. 🍀☯️