As has been mentioned above, these switches are not like-for-like in their intended purpose.
N5K's are traditionally datacenter switches.
Meraki and C9300's are typically enterprise switches.
Because of this feature/functionality can be quite different, especially if your N5K's have unified ports.
If you know what your requirements are, feel free to put them here and we might be able to provide some better advice. Otherwise, I suggest engaging a consultant who can look at your environment and better understand what your requirements are.