another hosted forms provider

https://admin.typeform.com/
another hosted forms provide like wufoo or google forms. 

Craft beautiful forms in seconds

https://ohmyform.com/
opensource form software

A deeply customizable form and survey kit for your app

https://tripetto.com/
higher-end web form/survey tool: higher-end than surveymonkey? Wish they had pricing.

Online Form Builder Easily create online forms.

https://www.jotform.com/
Kinda similar to wufoo

Creating User-friendly forms

https://blog.prototypr.io/creating-user-friendly-forms-46e3f7f4eef2
Good advice on usable forms. 

Happier HTML5 Form Validation

https://daverupert.com/2017/11/happier-html5-forms/
Technique for lightweight, simple client-side HTML5 form validation.

Google Forms Guide: Everything You Need to Make Great Forms for Free

https://zapier.com/blog/how-to-use-google-forms/

#GoogleForms is free. Here's a guide to starting to use them. Are they better than WuFoo?