The best replacement for pf_ring is dpdk.

The best alternatives to pf_ring are rated as following:
★★★★★  dpdk
★★★★  netmap
★★★  af_packet
★  pf_packet

Your alternative for pf_ring is not listed? Suggest!
Speaking about pf_ring, one probably shouldn't forget about snort.

Other search terms related to pf_ring and their ratings are:
★★★★★ snort
You have in mind a companion for pf_ring and it is not yet here? Propose!



Google Trends

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pf_ring
dpdk
netmap