Cinnamon is a great blood sugar regulating spice! https://www.nutriliving.com/blog/lowdown-cinnamon-and-diabetes
Also, check out info on coriander extract here: https://www.nutriliving.com/blog/coriander-and-diabetes
American ginseng and berberine have also showed promise, but more research is needed.
High fiber, low sugar, and non-starchy veggies are great to keep blood sugar balanced.
Check in with your Dr. to see what makes the most sense for you.