PEPPERS, HOT: Chili peppers have root exudates that prevent root rot and other Fusarium diseases. Plant anywhere you have these problems. Teas made from hot peppers can be useful as insect sprays. Hot peppers like to be grouped with cucumbers, eggplant, escarole, tomato, okra, Swiss chard and squash. Herbs to plant near them include: basils, oregano, parsley and rosemary.

Here is a link that might be useful: Companion Planting

For your other plants to be spicy hot they would need to be pollinated by the pepper plants first. And this is unlikely. I am unaware of peppers being able to cross pollinate with those you have listed.

And even if a bell pepper was pollinated by a hot pepper it would not be hot this year. You would need to save the seed from the bell pepper and grow it out next year to see any affect of the cross pollination.

Snowman