How do you guys manage tagging? I am using Azure, and adding tags for each resource is tedious. Anything you guys use?

have you seen stack transformations? https://www.pulumi.com/docs/concepts/options/transformations/

Actually I did, there's a blog on this too!

that’s what I’d recommend!

I also recommend that you checkout Azure Policy that allows you to set a tag policy on resource groups and let resources in them inherit tags. You might combine both Pulumi's stack transformation and the Azure Policy definition for tagging to create a robust tagging framework for your team. But then again, stack transformations are usually more than enough when you are just getting started. https://learn.microsoft.com/en-us/azure/governance/policy/tutorials/govern-tags

I found this which I read a long time ago: https://www.pulumi.com/blog/automatically-enforcing-aws-resource-tagging-policies/ this would work