Hugs honey.
Well I can tell you what has been safe for T...he has multiple intolerances too including probable intolerances to too much sugar and fructose.
Once he had a healed gut this was the order of food our biomed pead suggested we introduce.
First and safe food - (I've omitted all foods that we discover caused issues like pear)
Pumpkin, chicken broth, millet cerial.
Leafy greens ie kale, lettuce, bok choy, leave spinach till a bit older ie 8-9 mths.
Banana, apples (be careful with both.)
Avocado, sweet potato, yams, carrots etc
Legumes ie chickpeas, kidney and cannelloni beans. (Lovely blended with pumpkin and later oncoconut milk)
Lamb, then chicken. Beef later on as cow intolerances.
Broccoli, cauli, brown rice, quinoa
Coconut and olive oil for cooking.
HTH Hun. Take it really slow. We were told to introduce e ry 2-3 days. Worst advice for us ever as come 3 weeks when T was terrible, I had no idea at all what the problem was