Here is a great low risk way to take your opponent down: Crossgrip Ouchi Gari with USA Olympic Judo Coach Jimmy Pedro.
It is just like a traditional Ouch Gari trip (inside trip), except that you have a superior control of your opponent using the very dominant cross sleeve control. This allows you to move your opponent around and to even break their posture down.
Judo Olympian Matt D’Aquino shows the Ouchi Gari. Check out his site BJJ takedowns for a ton more takedowns for BJJ.
Jimmy Pedro and Travis Stevens’ Judo Academy Teaches Takedowns and Judo Ground Fighting More Extensively Than Any Other Program In American History