Invest several days teaching yourself each of them (azure/gcp/aws) ... spin up a VPS and execute some code then build a serverless service ... I tried each two

Invest several days teaching yourself each of them (azure/gcp/aws) ... spin up a VPS and execute some code then build a serverless service ... I tried each two years ago and felt gcp was the most enduser friendly ... do not limit yourself to using those explore open source github repos which provide a serverless framework then execute you code on a much cheaper VPS from places like https://www.ovh.com/world/vps/ https://www.ovh.com/world/vps/ where you can get a decent 8 gigs of ram box for $14/month Create a toy domain at domains.google.com which you can use anywhere your compute runs ... write a server then wrap it with a container and spin up instances of it to get the feel of microservices ... pickup the language golang and start using some of the hundreds of API's available https://www.programmableweb.com/category/all/apis https://www.programmableweb.com/category/all/apis Throw together several servers just to stream data between them using different protocols like DASH-MPEG or websockets Become a master of visualization using D3.js or WebGL to enable you to render dynamic interactive 3D browser friendly graphics