TeamRed miner is the best for me, I tried SRBminer and NBminer then I lost significant amount of hashrate using RX Vega 56 cards, I instantly went back to team red miner..
Teamred SRbminer NBminer
46MH 36MH 36MH with DAG error
That is pretty low for a Vega
With TeamRedMiner and proper timing (amdmemtweak), my Vega can achieve 50 to 54 MH/s (but I keep them @50 to be less power hungry)
https://imgur.com/a/CmBGjwramdmemtweak --gpu 0,3,6 --ras 26 --rcdrd 13 --rcdwr 12 --rc 38 --rp 12 --rrds 3 --rrdl 5 --rtp 6 --faw 12 -- cwl 8 --wtrs 4 --wtrl 9 --wr 13 --ref 24000 --rfc 239
amdmemtweak --gpu 1,2,4,5 --cl 18 --ras 23 --rcdrd 13 --rcdwr 11 --rc 34 --rp 13 --rrds 3 --rrdl 4 --rtp 6 --faw 12 --cwl 7 --wtrs 4 --wtrl 4 --wr 11 --rfc 164 --REF 17000