Some are quite easy (bee shrimps and cherries both are) and doesn't need any special equipment. Just a tank with plenty of live plants, a sponge filter (or a normal internal with the intake covered in sponge or mesh of some sort, so the shrimplets can't get sucked in!) and no fish that would eat the shrimps when they're young.
They're readily available in fish shops and online, or even in the livestock for sale section here. Some shops will take baby shrimps, but it's worth checking up with them first.