Proceeding from some ideas about the role of Music in speech-language therapy (and social coaching), back in the spring I did some activities with MusicLM. This tool is available from Google's AI Test Kitchen, which is free, though you currently have to sign in with a personal Google account and may have to wait a short while to be approved. With Music LM you "Describe a musical idea and hear it come to life." More specifically, type an activity, setting, situation, style, mood, or specific musical instruments, and it will create several examples for you.

The language and/or social interaction can come in through providing schema with the above italicized connections to music, using this as a conversational "add a thought" type activity, and allowing flexibility- as maybe your clients will think of possibilities that fall out of these categories. You can also be more structured and gear a lesson around, say, emotional vocabulary.