Our Implementation Consultants recommend using an initial application with an eligibility quiz for sorting purposes, with a clear explanatory title such as "Organization Grant Evaluator" or something along those lines. This quiz would then direct applicants based on whatever criteria your organization is using to differentiate between application forms. The reason for this extra step is that when an applicant begins an eligibility quiz, this creates a new application in their account which can be confusing to some applicants.
Once you have created your sorting application, you can use the quiz questions to route applicants to specific forms based on their answers. Please keep in mind that to select an application form as the answer to a quiz question, the application must be active.