The main pods species that are commercially cultured are going to be fairly similar everywhere.
IMO of the varieties Reef nutrition tends to have more pods in the containers, and are often available from the LFS, but seem to have fewer species on offer. I got my tigger pods from reef nutrition and they cultured well. I got my Tisbe pods from algae barn and they did fine.
Tigger Pods - I’d view these as “direct feed” only. I cultured them for ages, I must have added literally hundreds of thousands of them to the tank, sometimes adding a batch almost every day. They flat would not colonize. My limited understanding is the reef tank temps are too high for them, filter socks remove them, and they get predated on by everything, so get almost immediately wiped out. If you’re going to do these I’d strongly recommend culturing them to save $$$.
Tisbe pods - when your tank is ~3-6 months old just dump one bottle of these in and you’re done. These do great in reef systems, colonize the tanks readily, and are a little on the smaller side so aren’t predated on by *everything*. They’re tiny though - you will never see any on the rocks - so you have to use a flashlight and go searching for them on the glass by lighting them up from the side. Expect to wait a month or so after adding them before they really start showing up.
Other commercial pods: IMO buy a bottle and dump them in. They’ll either colonize or not. If they don’t then adding more won’t colonize.
For seeding with commercial pods I’d be very tempted to go with algae barns 4/5 pod species mix. Float, dump em in, wait.
In terms of wild pods - you flat won’t keep these out of your system even if you try. They’ll ride in on corals, crabs, snails, etc. You’ll end up with them sooner or later, and ones that tend to do ok in reef tanks as they’re coming from reef environments.
If you want to maximize your tanks pod production, and have a sump, then a chamber with a bunch of rock fragments, with water coming in low and exiting high (so it flows through and carries them out) makes a great pod breeding environment safe from predators.