I use this probiotic toothpaste.
It's a bit pricey, but this is the only toothpaste I've found that I can use.
Revitin Natural Prebiotic Oral Care Toothpaste - 3.4oz - 1 tube 1 pack https://www.amazon.com/dp/B0749J1PT5/ref=cm_sw_r_apan_glt_fabc_QZS3YGZS2KEE826VM8KD