I run a small firm and would require 300-400 users to fill the form monthly. Any suggestions?
You can have a look at free tools like Google Forms, Typeform, and CognitoForms that provide form builders for your specific requirement. Google Forms provides an unlimited number of forms along with an unlimited number of submissions and multi-user access. Typeform also offers beautiful and interactive free forms under their basic plan where you can create unlimited forms with no restrictions on the number of questions and tons of other features. CognitoForms free Individual plan offers unlimited forms and 500 entries a month, and also provides essential features like file upload, multi-page forms, payment integrations and calculations to create powerful online forms.