Variety of companies for all ages groups. Visual and sensory stimulus for understanding story language, sequencing, vocabulary and visual aid for recall and prompting.
Elkan have a host of resources Check in your school -you may have staff who are ELKAN trained who can help you
https://www.rcslt.org/learning/resources/ Developmental language disorder (DLD) factsheet (PDF) What are speech, language and communication needs? factsheet (PDF) Behaviour and communication factsheet (PDF)