Replicate frequency remodulators for yourself and ALL BOffs.

Don't rely heavily on AoEs. They may have high damage, but it typically only takes 1 AoE blast for the Borg to adapt.

Don't let them touch you.

Bring debuff removal. Anything that cures Assimilation, that'll be a pain at times.

High DPV weapons are preferable.

BRING A MELEE WEAPON. They can't adapt to having their heads cut off.