Data modeling in Power BI

I am looking for someone to help me with data modeling in Power BI. I need a relational data model and I already have a data source in mind. Additionally, I have specific requirements for the model that I need help with. Therefore, I'm looking for someone with experience in data modeling and Power BI who can help me reach my desired outcome. I am open to new approaches and solutions to the problem, as long as they are beneficial to the end result.