Where can I find a temp cold email job?

Hi,

I am a new freelancer and just started working with 4 clients(for free, they pay for the infra) for cold email. I have setup everything and managing their entire infra.

But it will probably take couple of months before I see results for them and therefore for now I am looking for a part time job in similar field. I have 4 hrs a day free.

Tried linkedin but none of them want anyone who want to work part time.

I am sure there are agencies that have a lot on their plate and I can help them offload some work since I can help with everything that goes in cold email(lead sourcing, setting up domains, dns, mailboxes, warmup, email copies, strategies, coming up with new angles etc)

Any kind of help is highly appreciated!