Depends on your goals. If asap remission (or close) is a goal then 20 or less is preferable / up to 30. I would highly recommend tracking food in the early days formally, before and after blood glucose (30 mins, 1 hour and 2 hours), giving meals a score, such as satiated, still hungry, bloated etc. Most Type 2's are higher carbohydrate intolerant, so starchy carbs (rice, pasta, bread etc) cause a disproportionate response within the body. My advice is believe your blood glucose monitor and put fingers in your ears to anything else, as your monitor (give it a name) will not lie, pretend certain things are alright or be a slave to ideology.
My carbs are broccoli, asparagus, leeks, greens, tomatoes, courgettes, celeriac, cauliflour, onions, garlic, coconut, nuts apart from cashews. I also have butternut squash, which should be tested for reaction.