Per MLB Trade rumors and links to articles from there.

Miami intends to sign no more than 10.

Mariners expect to sign 5-10

Giants didn't establish a number but said they are working several approaches - Local guys who might be Giants fans, and having players and coaches who know kids make the contacts/offers.

Kansas City has a green light to sign as many as they want.

I thought there was lobbying going on right now, but apparently clubs were not allowed to contact players between end of draft and 9 AM EDT Sunday.

Hope the Reds approach is more like the Royals.