I'm currently at an early stage startup around the series B mark, and we're currently using a PaaS, like Heroku or Fly.io, to host our infrastructure. However, while these solutions have served us to a certain extent, we're hitting limitations in terms of features, integrations, hardware options, and overall system reliability. For some context: we run a NestJS monolith application, use RabbitMQ for background tasks, Redis for rate limiting, and have an AI microservice for ML models. Our databases are managed Postgres and Google Firestore, plus we use GCP Cloud Functions for some legacy systems.We're considering moving to native cloud solutions on AWS or GCP but are concerned about the feasibility of the setup for our volume. Although Kubernetes is an option, the idea of managing a cluster seems daunting. So, we're exploring intermediate services like Fargate, Cloud Run, or Porter, which provide more advanced features while still being somewhat managed. Any recommendations?