Schema: Star rating and review Rich snippet for directory site

Hello,
I am new to wordpress and building a directory site for travel transportation.
Every listing represents a driver with its own review given by the community of users.

I am trying to configure my rich snippets in order to show the aggregate review each listing has above its meta description in search engines. (This is for the listing not for the review.)
The plug in I am using “wilcity” offers an aggregate rating placeholder schema markup for their listings with the following:
{{averageRating}}
{{reviewCount}}
{{bestRating}}
{{worstRating}}
(wiloke tools->listing settings–>schema markup)

Now, I am kind of lost since I don´t know how to exactly configure the rich snippet using rank math.
On the rank math Fb group page I was told that I could use the “service” schema as opposed to the “review” schema.
Could you provide a more detailed step by step for this?
Thank you,