@Akash Gautam Please correct me if my understanding is correct.
Get data from storage account --> use logic app/function --> Using the collect data create the model.
In the above scenario, you can use the logic app. You need to create the custom connector as mentioned in this document. Once you have created the custom connector in your workflow you can now leverage the Storage Blob or Storage Table connector to get the data either from the azure storage blob or azure storage table. Once you have the data use that data in your custom connector to create the model.