Question: Are there any alternatives to traditional one-time passwords that can improve user experience?

If you're looking for something that replaces traditional one-time passwords but still offers a good user experience, OTPless is well worth a look. It offers several verification channels besides numeric codes sent by WhatsApp, SMS and email, including magic links. The flexibility of how it can be integrated means authentication is easier without sacrificing one-time password security.

Another good option is MojoAuth, a passwordless authentication service for web and mobile apps that's designed to provide a frictionless login experience. MojoAuth eliminates passwords to reduce the attack surface and improve security for users. It's flexible, with white label login forms, code and no-code integration and easy-to-use APIs, so it should work well for many industries.

PropelAuth is another good option with a more powerful service, a multi-tenant authentication and authorization service. It offers passwordless magic links, SSO and 2FA options, along with some more advanced security features. PropelAuth is geared for B2B products, but it should work well for any company, large or small.

If you're looking for a full-fledged user management service, check out Clerk. It supports many authentication options, including multifactor authentication, social sign-on and magic links. It also can be integrated with common frameworks and tools, so it should work well for many apps.