All kratom works pretty similarly in the end, but I definitely go for red bali in these cases
Becareful with kratom though, can drag out the withdrawal process and is surprisingly addictive. I think you said you were on 5mg of oxycodone a night? Or something like that? You might consider using the kratom for a very short period of time (like the first 4-5 days) then switch to loperamide.
Since 5mg of oxycodone a night (maybe I'm remembering wrong) is super low, the big challenge won't be the acute phase but staying off in the long term. I still don't know what the cure is for that