Really need help besides using a 01 gsr obd2 block which other blocks can be use plug and play. Need all the suggestions and advice that can help me with the build

 

Nothing besides the engine that came with the car is plug and play. If you are asking what engine swaps are possible without much physical modification, then you are looking at B series blocks. You'll need the correct ECU to match and jumper harness, or a tuned and chipped ECU.
What is the goal/reason for this build? The answer will help us help you.