Basil is #1 for me. Also this year I got some oregano growing from seed. We got a rosemary bush or two in front of the house as well. Other than that its jut whatever I feel like. Got some chocolate mint growing on the side of the house... Smells good when you take out the trash and step on the mint. Lol
must add cilantro is important especially for making salsa with the fresh tomatoes. But it will bolt quick in the warm weather so grow it in the shade between tomato plants or something like that. Sage is good too, I dont use it much, but it is good.