Seeking Budget-Friendly Alternatives to SalesLoft for Email Automation

I am seeking a lower-priced option for capabilities similar to SalesLoft, but on a much smaller scale. Looking to automate <100 emails per segmented group, probably 3-4 segments total, and only 1-2 authors. Apollo and SalesLoft are more solution that I need (Outreach too). Can anyone recommend a lower-scale alternative? Thanks in advance.