Yes: open the collection and use "Withdraw from sale". From then on nobody new can subscribe to it. Everyone who already subscribed keeps reading what they could read until their access period ends, and their clock is not paused.
The articles in it are not touched — any you sell on their own stay on sale. You can put the collection back on sale at any time with "Put back on sale", and nothing needs reviewing again.
A collection cannot be deleted while anyone’s access period on it is running. Withdraw it instead; it can be deleted once the last access period has ended.
Once nobody holds a subscription to it, no payment for one is on its way and no article in it is for subscribers only, you can also archive it yourself: the collection comes off the site and the articles in it stay published. See Can I archive my own work?