tkl merger, the thing is in the tmd's most of the time it states where a dino can be placed, dc = chenini mb = morrison b and etc..
however...
edmonto can be placed in chenini for some reason and para, dilopho can be put in flamingcliffs! camarasaurus can be in tengduru for some reason and dryo in flamingcliffs too! i even have cerato in flamingcliffs, and i think edmont can be in judithriver b as well. its a bit weird and it needs more testing but yes... most reliable way is a tkl merger