Sounds amazing! I put some marigolds (in pots) over next to the tomatoes to encourage visits by pollinators, but it doesn't seem to be doing any good. It's so hot right now though, I'm having enough trouble just keeping the tomatoes alive. Didn't occur to be to put basil nearby - I should do that!
Oh yes basil and tomatoes love each other. You should read a book about companion planting. The title is "Carrots Love Tomatoes, The Secret of Companion Planting For Successful Gardening" by Louise Riotte. This lady really knew her stuff. She also has another book called "Roses Love Garlic" as well. Unfortunately, she is now dead but the information in these two books alone is worth gold in my opinion.