Hey Suchandana P. I'm a big fan of keeping BDRs on the phone instead of clicking buttons to send hundreds of templated, generic emails that struggle to book meetings. I’d recommend a power dialer like Salesfinity, Nooks, or Orum for the calling, with a separate team member orchestrating the email on their behalf.
There's some nuance depending on what your BDRs are targeting. Whether it's cold outreach or marketing lead follow-up, massive ICP versus tightly defined ABM outreach, and the integration piece with any existing tools/CRM.
If you've got any more info on what your current stack looks like, I could narrow down some specific suggestions for you. Feel free to DM me with any questions.