DX Zenkai Gattai Zenkaioh VrooMagine Set is composed of Zenkai Magine (Pink) and Zenkai Vroon (Blue)'s respective mecha with each mecha having two modes. Pink transforms from a dragon into a MagiKing-like robot, while Blue transforms from a dump truck into a Daibouken-like robot. The two combine to form Zenkaioh VrooMagine. Set for an April 2021 release and cost 6,800 yen. You can also purchase all four mecha sets into a single set for 13,600 yen, also set for an April 2021 release. All two sets can't combine into a single mecha yet.
DX Zenkai Henshin Juu Geartlinger is the transformation device of the Zenkaigers. Insert a Sentai Gear and pull the lever, which will cause the front of the gun and gear to turn. Each Sentai Gear will have the Sentai team and number in front, and the robot on the back. This item cost 4,500 yen and is set for a March 2021 release.
DX Zenkai Buckle can store up to 6 Sentai Gears and is team's belt. This item cost 2,500 yen and is set for a March 2021 release. You can also purchase this set with the DX Geartlinger for 7,000 yen, which is also set for a March 2021 release.
Change Heroes Series is a series of 12cm action figures representing the five Zenkaigers. Zenkai Juran, Zenkai Gaon, Zenkai Magine, and Zenkai Vroon can transform into their respective mecha modes. Zenkaiser is the only one with no transformation feature. Each figure cost 1,200 yen and is set for March 2021 release.
SH Series 01 Zenkaiser is a solo Zenkaiser figure. It is unclear if SH means Souchaku Henshin, the predecessor of the current S.H. Figuarts toyline or it might mean something else. This figure cost 1,000 yen and is set for a March 2021 release. Lastly, the Sentai Gear will also get their own respective Gashapon and Candy Toy releases, just like previous Super Sentai collectible items.
[Source: Rangerboard (link 2)]