Scaling Personalized Email Outreach for Custom Apparel Business

Hi Everyone, My name is Habib and I manage the Sales and Marketing of my family based company of Custom Apparel, Sublimated Sports Uniforms, Sports Gear etc. I joined this community to learn how can I scale my outreach and send personalized emails on scale to my ICPs. I would love to know which platform would be great for my leads sourcing. How can I send emails with personalization on scale and spending less money on that.