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kotlinlang

Also check official migration guide, covers this topic too

This statement about "sometimes the plugin is type-safe, sometimes it isn't" definitely make sense, but not because bof plugins dsl, but jusy because plugin is too dinamic

I think that any centralized wiki cannot solve problem of thousands Gradle plugins, the best thing what community can do is report such issues to plugin authors and request Kotlin DSL docs (or even contribute it to plugins repo, it's not so hard)

Actually there is a big epic task to provide docs for popular third party plugins on Gradle's GitHub
<https://github.com/gradle/gradle/issues/6790>

Finding right plugin id usually not a problem, I see it in instructions of most of Gradle plugins, also <http://plugins.gradle.org|plugins.gradle.org> is good way to find required plugin
This is not only Kotlin DSL thing, plugins dsl used for groovy as well and actually recommended way to configure Gradle, eventually buildscript dsl will be deprecated