I was researching but it isn't clear.

I'm looking for old domains which are about to expire or are already expired. But I don't know if after I buy them google will see the domain as new or will it have old value?

I'm looking for domains that will retain their value after buying. Specifically made a list of domains with 100-1k backlinks and CF/TF ratio above 0.50

So should I buy expired, dropped or deleted domains?

Thanks