I use Chargery BMS8T which has passive balancing, balance ON during charge & storage. start @ 3.30 and allow for 20mv diff.
I also have a QNBBM-8S Active Balancer on every pack which do the heavy lifting. By end of my float cycle, cells in all packs tend to be between 6mv to 20mv pending on pack.
<- QNBBM-8S
BMS harness wired to Balancer and Balancer out to cells with 14g copper & tinned rings.
* Suggest using wire Ferules, easier, or twist the wires together very well before inserting.
Alternatives for connecting an Active Balancer:
The HELLA block with ATS fuses is one option that is likely best used with active balancers above 5A capacity. Will impact IR readings.
The MOLEX without a fuse is another good alternative, a Ferule is a good idea as always with stranded wire but not "necessary". Although solder tipping stranded wire is a good idea. NB, these have small through screw holes in the body so they can be mounted easily.
BOTH are available with various pin outs.
REMEMBER, BMS has an extra wire for Neg on cell harness.
Hope it helps, Good Luck.