Service layer in laravel 5.7

I have gone though the Laravel and found that every request gone though middle layer -> Controller layer ->Resource Layer. But for my project I have huge business processing logics which needs to be written. So, I am looking for a service layer option where execution control will be passed from Controller and then service layer will do the processing logic along with databae fetch. But though artisian I didn't find any service layer part. So, can you siggest me how I can manage this service layer in my project.

via Chebli Mohamed