Use a travel meta-search engine such as Skyscanner, Agoda, or eDreams
It’s also possible to use travel meta-search engines to find good deals on bulk airline tickets. These engines allow you to enter your desired travel dates, departure and arrival airports, and number of passengers, and some enable you to specify that you are looking for bulk airline tickets or group travel options. You can also enable price alerts via these engines to track fluctuations in ticket prices to help you book flights when prices are lower.
However, this option is also very manual, doesn’t guarantee that all travelers will travel together or at the same price, and may involve various surcharges. Plus, these platforms are third-party providers and lack the capability to assist with any problems that arise. This means that you would still have to reach out to the airlines directly, resulting in a poor customer experience.