Crunchyroll streams the series in the USA, Canada, South Africa, Australia, New Zealand, and Latin America.
The distributor has now set a release date of June 5th, 2019 for the 22nd volume of the Whole Cake Island Arc portion of the show on Blu-ray which is set to cover episodes 867 through 870 when it arrives.
The One Piece train continues on as Avex Pictures handles the Japanese home video release for the series.