Looking for cold email service. I am about to launch a new service, need to go kamikaze on this email channel for growth

I wouldnt say I am an expert at cold emails even tough Ive had years of exp in Marketing and have done this before, but I might have couple of Qs before we start off.

Here is where I stand currently:

> For the first month or so, I can provide you verified emails

> Been doing warmups on couple of emails of mine and deliverability rate is high, but if your service also include warmups, lets explore

> The ONLY metric that i will be focusing on is reply rate. Everything else for me will be vanity metric (open and click). I am looking at big scale here. I do not know from how many emails do I need to start with per day/week/month.

Need a service who can also guide and kick this off.