Honestly, your best option would probably be to separate the chickens and turkeys permanently.
My turkey hens, even when not raised around chickens, don’t mesh well with them and tend to get fighty. Your hen probably won’t let up on attacking them, and you never know whether The tom and other hen will begin injuring chickens as well. Toms raised around chickens see them as hens, and will try to mate with them, which can end pretty poorly for the chicken. You may see some of those issues once your turkeys begin breeding in the spring, or may not.
Taking that into account, just separating them into separate pens would be the best option. Removing the one hen turkey hen is an option, And may work temporarily, but she could come back more aggressive in an attempt to restart the pecking order, or the other turkeys could begin hurting your chickens. Putting them in a completely separate pen, without chickens to potentially injure, would be the most concrete way to stop them from harming your chickens. It takes time and resources to build the pen, yes, but simply removing them from a situation where they could injure your chickens is the best option.