If you look on Amazon there are loads. I use Mega Pro biotic HD.
I have used the Optibac ones in the past and they are very good. You can get them easily in Boots or Superdrug.
Actimel is a nice morning drink but that's about it to be honest.
To get the good bacteria into your gut then a good pro biotic is needed. It's either that or make your own. Home made sour kraut is supposed to be good....but I can't see you doing that CLKD. I would rather just buy a supplement as it's much easier.
Mrs Brown