Aggree with Shivani, first you need to understand why people leave (even if its the company that lays them off), then to define the desirable culture within the company ---> make sure that everyone within the company is aligned with this culture.
I would also be more focused on applying a retaining strategy (find what makes people happy and keep them in the company ---> but there is not one thing fits all.
Lastly I would assess frequently their happiness and wellbeing score, to see if there is something wrong and try to avoid keep losing people.
If you want more details, cause it is EXACTLY what we do feel free to DM me.