I'll create a React component for an onboarding form that collects essential information for a SaaS product. This form will use shadcn/ui components for a polished look and better user experience.

This onboarding form includes the following fields:

1. Full Name
2. Email
3. Company Name
4. Company Size (dropdown)
5. Role
6. Password
7. Terms and Conditions acceptance

The form uses React Hook Form for form state management and Zod for form validation. It also utilizes shadcn/ui components for a polished look and better user experience.

Key features of this form:

1. Client-side validation with helpful error messages
2. Responsive design
3. Accessible form fields with labels
4. Password field with a description for requirements
5. Terms and conditions checkbox
6. Submit button that logs form data to the console and shows a toast notification

To use this form in your project:

1. Make sure you have the necessary dependencies installed (react-hook-form, @hookform/resolvers, zod, and the shadcn/ui components).
2. Copy the OnboardingForm component into your project.
3. Import and use the component in your desired location.

For example, you might use it in a page component like this:

This will create a centered onboarding form on a light gray background. You can further customize the styling and layout to fit your specific design needs.

Remember to handle the form submission on your server-side to process and store the user data securely. The current implementation only logs the data to the console and shows a success toast message.