How do you buy more crowns in ESO?

I'm curious, can you explain the process of acquiring additional crowns in The Elder Scrolls Online (ESO)? I'm particularly interested in the steps involved and any tips or strategies you might have for efficiently acquiring them. Is there a specific method you prefer, or does it depend on individual playstyles and preferences? Additionally, are there any limitations or restrictions to be aware of when purchasing crowns in ESO?