Rav Yitzchak Meir Morgenstern, a mekubal, has pasked for his talmidim that they should make sure to join a group membership for the korban pesach before Pesach. He also requested that they arrange membership in such a group for him.

According to Rav Morgenstern, as reported by Mendel Ratta (Roth), one of his talmidim (and now famous as a mashpia and musician), there is no halachic problem preventing us from bringing the korban pesach today. Being obligated today to bring it means one should do what he can, such as joining a group, so if it becomes physically possible to bring, everything else will be ready.

According to Rav Morgenstern, for the korban pesach. tumah held by the entire public is permitted and no red heiffer ash is necessary to remove the tumah. And, we do not need external miracles to facilitate us bringing the korban pesach - it is simply in our hands to do with normal hishtadlus to obtain permission from the authorities, and therefore we have an obligation today to bring it.

Rav Morgenstern quoted the Gra, the Vilna Gaon, that at the moment when the Jewish nation will bring the Korban Pesach in the right time in Jerusalem, the true redemption will be opened before us.
source: Kikar