The following picture is taken from metahub.info.
I don’t own these pics.
And…now depending on the hybrid’s class, I’ll give a ingredient speculate.
Some are referred to metahub.
Diplocaulus X Irritator Gen2
Ankylosaurus Gen2 X Ophiacodon
Dilophosaurus X Ouranosaurus
Monolophosaurus X Ornithomimus
Tuojiangosaurus X Paramoloch
Sarcosuchus X Einiasuchus
*aka: Sarniasuchus, which is the former placeholder name
Based on metahub speculate, I observe hybrid’s avatar, also consider their rarity.
(ex: Diloranosaurus got green body color, that will more possibly from Dilophosaurus instead of Dilophosaurus Gen2)