More agility (77 cap) after you cap tackling.
Then the rest depends on what type of DT and how quickly you want to be good vs. how good you want to be at your peak.
If you want to be good sooner, then train speed, stamina until speed is 52 and ready to roll over and stamina is at least 33, then switch training to vision and confidence while getting stamina capped and speed to at least 68.
If you have a longer term focus then I would suggest training tackling/speed after you cap tackling. Tackling will go up faster so once you can second cap tackling switch to speed/stamina.