98 hx civic engine swaps

I have a 98 hx civic and i believe it has the d16y5 and i am wanting to swap engines. B 16/18 or maybe something else. What will fit and work the best It has a 5 speed. So what ever will bolt right in and work with tranny and wires. I have 18 on the car and intake and muffler but want more grunt! thanks