User Portal with Questionnaire and Progress

Hi everyone,

I am wondering if anyone knows any white label websites or programs that can be used for client intake similar to rocket mortgages. Something to create a portal where clients can login, complete an intake questionnaire, upload documents, receive documents, etc.

I see a lot of larger companies have this type of ui/integration for their onboarding process, but not sure if there are any white label or non-customized options.