Hello, I am the owner of a 1988 Honda CRX HF. My father found a B16A2 to swap in to the car. Is this a good engine to swap in compared to the D15B6 that's in now? Do we have to use the specific transmission that comes with the engine or can we use the current transmission we have now? Does anyone have any videos that can show how to swap this engine in?

 

There should be plenty of info online already. If you can't do a search and figure this out yourself, it's going to be a bit hard for you.
You need the b series tranny, amongst many other things like axles, knuckles I think, shift mechanism. And some electrical work. Also engine mounts