Hello! I'm building a cloud based website similar to clubhouse (kinda like discord/skype but audio + chat only). Do you recommend any affordable, simple, well documented APIs, CDNs, cloud, and microservices that I could implement to my website? I heard Beluga CDN and Google Cloud Platform is the most affordable, but what functions should I look out for? (Cloud SDK, cloud storage, load balancing..?). Like I'm unsure what services I should look up / use. Also, any learning resources for microservice architecture and system design would be amazing. Thank you so much!