Help me to choose a domain

I am building SaaS tool that helps founders understand their users better by tracking which pages they visit, actions they take, features they use, and more. Using this data, it automatically sends pre-set, personalized emails from the founder’s or team members’ email address based on templates, not AI-generated content. The goal is to keep users engaged, build trust, and encourage them to convert into paying customers.

Instead of manually following up with every user, this tool handles it for the founder, making emails feel personal and well-timed—ultimately saving time and boosting conversions.

Which name sounds better for a tool like this:

1.	Pabble.io
2.	UserConverts.com

I not only want to build a brand but also think of domain in SEO perspective.

Thanks!!