A few resources that you might find useful from Kamehameha Publishing:
Kumukahi has lots of multimedia resources that are available in both English and ‘Ōlelo Hawaiʻi. Another great feature is that the entire website can be changed into ‘Ōlelo Hawaiʻi.
Lau Nehenehe has ebooks available in both English and ‘Ōlelo Hawaiʻi. Some of the books have been turned into real-aloud videos that are also read in both English and ‘Ōlelo Hawaiʻi.