[Den-O]

Overtime is usually the group that has subs for new episodes out first. Their quick and they don't do anything too flashy. They tend to take more liberties with translations which can be off-putting to some but others welcome it.

The other big one is TVNihon. They generally take a few days after the episode raws hit the web to get subs. But they tend to put much more into it too. Flashy graphics and the like, they leave more untranslated with translation notes.

Currently there is a raw of the first episode of Kyoryuger and Overtime has it up on their site. No one has it translated and subbed yet though. You'll be waiting at least another day for Overtime to finish theres and 2-3 for TVNhion.