Well I don't know much about pairing them, but hopefully others will. What I do know is that they are sequential hermaphrodites, with the males normally being larger than the females. It may be possible to set up a small harem using one large fish and two/several small fish, but I don't know how large of a role aggression would play and I am sure that is also largely species dependent.
I believe they can spawn daily, so egg collection would need to be done after the spawns. I would imagine that you could create some sort of collector, but from what I have read most people just collect them by hand. The eggs float, so you can just take a bottle or collection cup and skim the surface with the eggs and pull the eggs into the bottle.
Getting them to spawn and collecting the eggs is probably the easiest part when it comes to these fish. Incubation seems to cause problems and can be difficult (I think this period goes from like 12 to 20 hours, depending on fish, IIRC). The eggs hatch out into prolarvae, which are tiny and undeveloped. They have no mouth so feeding doesn't take place immediately. I can't remember when feeding typically begins, but once again, hopefully someone else here knows.
The next challenge is the first feeding. I don't think rotifers are suitable first foods, and you will likely need to become comfortable culturing other organisms like copepods. Metamorphosis takes a while to occur and it may be a couple of months before your larvae reach that phase.
So, long post short, this is a very difficult group of fish to tackle as a first breeding attempt. Have you tried other, easier, fish like clowns? Have you cultured phytoplankton or zooplankton before? If not, you may want to do that first, just to get some practice. I know many people who have bred several different fish species and still have a hard time even incubating dwarf angel eggs, let alone raising them. But if you are up to the challenge then I say go for it! You just have ALOT of reading and obstacles ahead of you
