Rav Kook, a brilliant mind was always unique and often stood alone among the other giants of his day. There is a perception in certain quarters that the other leaders among Orthodoxy had no respect for him. The following sources paint a different pespective.
10 Relationships between Maran Ha-Rav Kook and Various Gedolei Yisrael that the Yeshiva World Should Know
* Also interesting to read is this interview with Rav Moshe Zuriel, a great exponent of Rav Kooks writings
http://yoelmeltzer.com/an-interview-with-rabbi-moshe-zuriel-2/
A Letter From The Saba Kadisha Rav Shloma Eliezer Alfandri ZTZ”L About Rav Kook
https://www.yhe.center/single-post/%D7%97%D7%A9%D7%99%D7%A4%D7%94-%D7%97%D7%93%D7%A9%D7%94-%D7%94%D7%AA%D7%92%D7%9C%D7%94-%D7%9E%D7%9B%D7%AA%D7%91%D7%95-%D7%A9%D7%9C-%D7%94%D7%A1%D7%91%D7%90-%D7%A7%D7%93%D7%99%D7%A9%D7%90-%D7%90%D7%9C%D7%A4%D7%90%D7%A0%D7%93%D7%90%D7%A8%D7%99-%D7%96%D7%99%D7%A2-%D7%90?fbclid=IwAR2h3zLknf0pc6ScAADUAWu2H_v9z-RL8RnQm-F1LhT57dEF8KQDHSWGBGU