Speech therapy

Do any parents support their FX children through speech therapy directed at the aspects of pronouncation through excersise. If so is anyone aware of resources that address low speech volumn and poor pronouncation.
Thanks

I haven’t been able to access much in the way of speech only through the school he attends. And the fact it costs alot of money to access the lessons he needs as we were doing it through Queensland health until he started school. If there is any exercises that are knew would be good to find out.