I’ve recently read a thing about GLP1 agonists:
https://pubmed.ncbi.nlm.nih.gov/23955813/
I’ve seen somewhere that they increase C peptide by 3.5 times, they promote beta cell proliferation and therefore probably reduce (but not completely stop) the damage from the autoimmune processes
GLP1 agonists can be prescribed to diabetics by doctors, you just need to be smart about it and make sure you know about what it is as they don’t give out stuff to people who don’t know what they’re talking about. GLP1 agonists also delay gastric emptying so diabetics can use it with a combination of insulin to achieve better glucose control
Apart from that, as others have stated... you need to keep within range
Although I haven’t seen anything online about it, I would take vitamins related to beta cell function and immune function just to help (we all know it doesn’t work but what’s wrong with trying)