Which brand/strains of Probiotics pills would you recommend?

I’ve been drinking Activia Probiotic Dailies yogurt daily for a few weeks, and I’m noticing a significant improvement in my GI symptoms.

But…they have a lot of sugar, and I am pre-diabetic. And I thought they were “cheaper” but to buy enough for a month is a good $20-$25. I could buy a probiotic pill for that much.

I’m particularly interested in the Walgreens store-brand ones. But I’m not sure what to look for on the label. They even have more than one option, and I don’t know what the difference is.

My main side effect is diarrhea, along with bloating, gas, and lower abdominal pain.