I've heard good things about Xray Tetras being easy to breed. I've bred neons before, once you get the hang of the lighting trigger and water parameters it's easy.
Make sure you have some almond leaves and or drift wood to help lower the pH + introduce tannins.
For egg scatter layers I've seen some people put a few layers of marbles for the eggs and fry to fall into- to be kept safe from the parents. But I've never personally tried that method. Just remove the tetra parents after you see them start laying eggs. Fry can be tricky and might take a couple tries to raise successfully.
Best of luck and keep us posted on what you wind up trying to breed! :)
