To determine if you are eligible to join any ongoing class action lawsuits, you should first check if you meet the criteria for the specific lawsuit. Class action lawsuits are typically filed on behalf of a large group of people who have suffered similar harm or injury, and the lawsuit aims to address the harm caused by the defendant. You may be eligible to join a class action lawsuit if you have suffered similar harm or injury as the other members of the group. If you are unsure if you qualify for a specific lawsuit, you can contact the law firm handling the case or visit their website to learn more about the criteria. In most cases, if you qualify for a class action lawsuit, you do not need to take any action to join the lawsuit. Once the lawsuit settles, you will typically need to submit a claim either online or through the mail to receive your portion of the settlement or judgment.