Best probiotic post c diff

I am 59. Female. Extremely healthy until 2021. Retina tear repair caused eye nerve damage. Treated by a wonderful eye doc at Mayo. Five months of 40 mg prednisone, gabapentin, Aleve, Benadryl, and Pepcid due to these meds trashing my stomach. Dec 2022 ended up with strep after Covid which led to throat abscess and two months of iv and oral antibiotics. Stomach just felt beat up this Spring/Summer. Bouts of nausea and diarrhea, lactose intolerance, and indigestion. Primary did labs, h pylori, abdominal ultrasound. All ok and put me back on Pepcid ac. Referred to gi when stool became mucus filled and blood tinged. Stool came back cdiff toxin b. Just finished 10 days Vanco. Gi little help in advising best probiotic and diet to try to ward off recurring cdiff. I have been taking 4 Florastor per day since start of Vanco. I am not eating dairy or sugar. I exercise daily. I have added plant based forager yogurt. My stool was back to normal after several days on Vanco. I take a tsp of Gaviscon at night as my stomach still feels fragile after all the meds. I have read about a probiotic called bio k plus that has shown promise in research to help stop a recurrence. I am asking for any further guidance on probiotics/diet, etc.
I am also due for my colonoscopy and am not sure what the gi will advise in terms of timing since I just finished the cdiff Vanco treatment. Any advice appreciated here too!