To put it bluntly, in terms of sheer length and height, Spinosaurus takes the crown handily but weight is a trickier question.
Spinosaurus - Wikipedia
Tyrannosaurus (T-Rex), Habitat + Lifestyle + Diet, rex
Dinosaurs Worksheet
A T-Rex and Spinosaurus size comparison : r/Naturewasmetal
Could Spinosaurus Defeat the Tyrannosaurus Rex? And Further Information
Spinosaurus dinosaur was 'enormous river-monster', researchers say
T Rex Drawing Images – Browse 48,882 Stock Photos, Vectors, and
Bigger Than T. rex
Bigger Than T. Rex, Dinopedia