I just use whatever kind I have around... Doesn't really matter.
If you have some GladWare (resealable plastic containers) around, they work great for holding the moisture in... That's how I do it.

Fold the paper towel a few times & lay it in the plastic container, then I spray it with plain water realy well, get it nice & moist. Then I put the seeds in between the folds & spray it again, then place the lid on & stick the containter someplace nice & warm... Generally, I see root tails in 24-48 hours. Very high germination rate, too.