Kepler
Cornell Big Red
I think the Stand Up to Cancer ones are not available in the US. At least not that I could find. Only the holiday themed ones, of which there have only been 3 with celebs that I can tell. Those 3 were ok though I thought. But the only people I recognized were the Derry Girls.
Looks like the 1st 7 seasons of GBBS are on The Roku Channel. Everything after that is on Netflix. Sue and Mel were always the best hosts. But the Sandi/Noel combo was good too. And I think Noel continues to be good overall. Matt Lucas was a bad fit. Allison Hammond seemed ok in here 1 season so far.
Noel is a god, and Matt was excellent. I haven't hated any of the non-Matts, but I haven't liked any of them, either. Sandi set my teeth on edge, but I hate that type of persona so it's not her fault.