My take on DHB is that we have just 1 study on it and it was no stronger than testosterone and was directly renal toxic.
As for tren like results, only tren does that and 2nd would be halotestin as it also has strong affinity for the glucocorticoid receptor. Trenbolone was approved for human use in women at 50mg weekly, administered every 10 days at 76mg intramuscular, averaging out to about 50mg over the week. At that dose there is plenty going on at the glucocorticoid receptor. So prehaps start there, 50mg weekly split up into 4 shots.
A good rule of thumb would be take what was used in humans in either trials or clinically and say 2-3x that is acceptable and has relatively low risk attached.
Now you're informed on something you may not have known and can make a more informed decision.