I have a dinotte quadRed and that thing is eye-searing even in daylight. I'm sure there are other good lights but the specific models escape me at the moment. The electronics sub-forum will have more information than you ever wanted to read if you care to go over there with the same questions.

Consider also adding a light to the back of your helmet - I believe it makes a cyclist more visible and the different movement of the seatpost light and helmet light also stands out more. I see tons of (usually shorter) people on bikes with a dim blinky attached to the seat post under a large saddle bag - you can't even see the thing. Do a self-audit and make sure you can see yours.

And of course, if you're riding at night, get some reflective gear.