Healing the culture after toxic leaders leave [VT]

Hello,

I am looking for any resources or real-life examples for helping a workplace heal from years of toxic leadership (at many levels and just from successive people). Those individuals are all gone now and there has been some significant steps toward healing the culture and shifting patterns that were necessary for survival (i.e., being guarded and siloed). More needs to be done and people are eager for it. I do have quite a bit of knowledge and skill for leadership development and nurturing psychological safety but I am also a Dept of One, so looking for inspiration and practical ideas from those who have walked this path. Theoretical ideas will not be as useful. Thanks in advance.