Question: I'm looking for a way to simplify OAuth and authentication for my users, is there a service that can handle this for me?

If you need a service to handle OAuth and authentication for your users, Paragon is a great option. It's an Embedded iPaaS that has native support for an expanding list of pre-built connectors and built-in support for OAuth and refresh tokens. With a custom integration builder, serverless workflows and low-code or code support, Paragon takes care of authentication for you, making it a good option. It also supports Next.js, React and Vue apps, so you can use it with a variety of frameworks.

Another option is Kobble, an all-in-one platform for building SaaS apps. Kobble has built-in authentication support through a no-code authentication portal that supports multiple OAuth providers. That means you can focus on your business without having to write authentication code. It also has tools for user management, access control and quotas, and supports Next.js.

For a more mature option, Workflos has a lot of authentication and authorization features. It supports multiple authentication protocols, including SAML 2.0, OpenID Connect and OAuth 2.0. It also has Multi-Factor Authentication, real-time access control and customizable audit logs. That makes Workflos a good option if you need a secure and scalable authentication service with a unified platform to manage many SaaS apps.

Last, Supabase is an open-source Firebase alternative that includes user authentication and a Postgres database. It supports Next.js, Svelte and Flutter, among other frameworks, and has features like real-time data synchronization and vector embeddings for machine learning integration. Supabase offers a free tier with unlimited API requests and 50,000 monthly active users, so it's a good option if you want to build production-ready apps without breaking the bank.