How to pass multiple models to _Layout.cshtml

Question

I am a newbie MVC developer , I made a simple website in which i have _Layout.cshtml in the layout i have different partial views like for header , for footer they are static and my work goes well, now the situation arises where i have a Menu link Like services and these services are coming from database  so i made a simple database table I am new to mvc i do not know how to get data from database into the partial view , 

secondly i did the above task via internet help but now when i am calling this partial view then it is already having one model referenced so i cannot reference another model like @model Myapplication.Models.Service

How i can render a partial view in _layout.cshtml without giving the model reference in the _layout.cshtml or how to give multiple models in _layout.cshtml.

 

 Thanks for reply