How can i check all the metadata having dependency on my opportunity record type name. I am only going to change my record type name not the api name?

Hi @Shehsin P N

You can download all your metadata using VS code IDE and then you can search all refrences for your record type name

 Check the below article 

https://www.apexhours.com/how-to-setup-visual-studio-code-for-salesforce/