Contractor List SaaS

I cleaned up 700,000+ leads and tested 50,000+ - hit 32% verified & DNC approved phone numbers + an astounding 67% verified email rate at the contractor level (U.S only).

Contractor goes beyond the word - it's really meant for most B2Cs you can think of (HVAC, Custom car mechanics, granite projects, real estate property managers...the list goes on).

Want to make a SaaS leveraging AI-assisted coding tools and only know of Cursor, Lovable, Bolt but, have only played around with Cursor.

Using OpenRefine & Python, I've cleaned up a lot of the data points, and with Azure credits from Founder's Hub, I've got some flexibility but, looking to gain an understanding from real builders what the strength(s) of these tools are for the project here?

Any insights would help - On the roadmap, I need to produce a front-end (likely Lovable would be good at this?) but, on the backend I'm thinking of storing the database in Supabase or NocoDB; likely Supabase because it connects natively w/ Lovable and through an API with Cursor?

Then gotta figure out API for setting parameters for the data extraction (Auth-based). Then looking at security before launch...I can set some at the user level through Make.com's advanced webhooks but, there's a lot I'm sure I'm missing.