when i was using threads used to work on concurrentlinkedqueue and others is there any equivalent for it in kotlin when using coroutines?

I think that would be a

Channel

You can still use Java's lock-free concurrent data structures with coroutines, the same principles apply, and there are no kotlin-specific implementations of those in the standard library at this time.

Channel

is effectively a blocking queue, and can be used instead of

BlockingQueue

and friends.