Hi There
With Reference to your project, we would like to offer our services. We are a remote agency which excels in the field of Wordpress/ Woo-commerce from past 7 years. otp functionality in registration form and user login with their email id or mobile with otp, is absolutely possible in this.
But We would request you to connect over chat and discuss the project further , which may help both the parties to understand things in a better and easy way. Hope to hear from you soon :)