I'm not entirely sure if this is the right place for this question but I've been searching far and wide to find pieces similar in sound and have had no luck googling.
In Rachmaninoff's Piano Concerto No.2 in C Minor, Mov. 2, there is a very distinctive section towards the end with an arpeggio in the left hand and some chord progression in the right. For reference:
It starts at exactly 10:18 in the video.
I'm wondering if there's a particular name for this sort of run of the right hand and what style of music it falls under, and how to search for pieces with similar atmospheres!