Suggested articles linked to specific ticket form

We have a lot of ticket forms and want the customer to be presented with articles related to that ticket form. IE if the form is about Subject A then related articles to Subject A will appear. In some cases they need to provide additional attachements which can only be found in the artlcles. Apparently suggested articles only works from when the customer enters text into the subject line, in our case we wont have subject line on the form as the customer is presented with the exact form at this point.