Where can I find an alpha version of the application (web service\desktop\mobile) with a large number of bugs for testing?

Question

Software testing

For new employees of the company (beginning testers) it is necessary to prepare several test tasks. As a test task, I would like to find several applications with already partially implemented functionality, but at the same time, with a sufficient number of bugs. Can anyone advise a resource or share similar applications on their own?
ps are ready for cooperation and exchange of test tasks, at the moment we have a number of test tasks, but we need to expand this list
Thank you in advance

Answer 1

As an option - raise the old release of any of your services for which the list of bugs is known, let them test)