Anything below 1.080 you chaptalize.
What do you typically bump up to?
They say 1.090 is the magic number, but it depends on your preferences, as well as what you are trying to make.
I aim for 13% as a general rule. Mostly.. At the speed I sip it creates a nice buzz and it tastes like wine. It is never notably too strong or weak of an ABV.
I made a Dragon's Blood around the 11% mark, and the comments from my very hard to please critics was that it had a pleasant flavor, but was lacking oomph. After that I started aiming for 1.090 to 1.100
The two I mentioned above with skin packs, I am aiming for 14+. With a 1.100 starting gravity fermented bone dry, I should end up around 14.4. I just racked out of primary and it is currently at 13.6% .996 and likely not completely finished fermenting. I added 2 oak chip packs and the skins to primary, and I am aging on oak cubes. This is all adds to body and tannin which I hope with time will round out and blend with the higher abv. But, as mentioned above, the fullness I am aiming for will fall short, taking away from the whole flavor profile if the ABV is too low.
With a lighter wine that ABV could make a batch taste like rocket fuel. This is why it depends on your goals and preferences, but also why 1.090 is generally considered the sweet spot.