Let sales send out mail to multiple contacts via a list or by selection - without Sales Hub

Would like to allow our sales teams to contact multiple customers based on pre-defined criteria. E.g. selecting the best customers for a promotion and sending it to them all from a single email. Not using sales hub sequences as a work-around (we don't have sales hub, only marketing). This would allows our sales teams to send their contacts really targeted information - especially useful when they aren't subscribed to marketing.