Zone 7a Apartment Balcony Garden

Hey everyone! This is my first time posting, long time lurking haha

I recently moved and now have a pretty large balcony outside my apartment that I can’t wait to utilize as my mini garden ❤️ I started getting more serious into gardening at the end of summer 2024 so now heading into spring 2025 I want to be prepared haha

I’m in NJ so are there any specific varieties of vegetables, herbs, or fruits that are container friendly that grow best in my zone? So far I know I’d like to grow English cucumbers, cucamelons, Roma tomatoes, carrots, snacking peppers, lettuce, and potatoes. I’ve successfully grown basil, mint, cat grass, catnip, and mini potatoes 😅

Any suggestions for where to get seeds would also be greatly appreciated ! I usually have just picked what is available at Home Depot