JR pass coverage

Hi, greetings from Australia. I am stil confused what best pass to purchase for me and my husband, travelling 23 days in Japan. Arriveal fligtt at Sapporo New Chitose - departure flight at Narita Tokyo.

We will need the train: Chitose airport - Sapporo, and will visit: Asahiyama Zoo, Otaru, Noboribetsu, Lake Toya, Furano, Hakodate, Osaka, Hiroshima, Miyajima, Kyoto, Fushima Inari, Nara, Takayama, Mishima/Otsuki (Mt Fuji), Tokyo, Narita Airport.

Will a JR regional pass 21 days cover all these destinations? or should we get an combined/ mixed different pass? Kindly advise. Many thanks for your help.