Flow Tools

Hi

I've got a problem and I'm hoping OBSD may be able to solve my problem.

We bought new firewalls in 2017, but they can only send flow traffic to a single destination. We need to send flow traffic to 3 destinations.

I have a copy of Michael Lucas' book Network Flow Analysis, and I've been reading about flow-tools and flowd. Unfortunately there doesn't seem to have been a lot of development on these tools since 2010.

Are there any other tools that I may have missed that would help me solve my problem?

Thank you in advanced.

Paul