There's 4 main types connective:
Connective Tissue Proper/CTP: surrounds and cushions organs, bones, and muscles, and helps to hold them together. Tendons and ligaments are specialized forms of connective tissue proper.
Cartilage a firm but somewhat rubbery connective tissue found in skeleton's various parts, like joints in mammals, cartilage found in ears and nose.
In cartilaginous fishes, like sharks,
There's 3 main types:
Proper Connective (CP)
Supporting Connective (SC)
Fluid Connective (FC)
All of them have their own types
But we're not gonna go this further as it's going way too complex. For further information 👇.