Post 16 help for my PDA son.

Hi - seeking advice on resources to help my PDA Autistic /Dysgraphia son find a job at 16. He is heading into Yr 11 next year at a mainstream school in Stoke. 

Upon reading .gov it looks likely he will have to do option 3: the 20hrs job + one day education (https://nationalcareers.service.gov.uk/careers-advice/career-choices-at-16) - does anyone have experience in what this looks like practically? types of jobs that make sense and can be accommodating - are there services that can help. I remember on a trip to Bristol last year seeing an organization there advertised that helped Autistic people get jobs although i forgot the name sadly.

We have an EHC application underway at the moment so we can perhaps get extra help for the final year at school , but i am prepared he will come away from school with minimal qualifications at this point due to lack of effort/engagement (but not intelligence) 

I am trying to understand if there are organizations ideally in the west midlands (in person)  that can help with job placement any guidance , support etc. from the community. 

thanks