So here are my plants.

5 squash
3 cucumbers
3 tomatoes
5 bell peppers
3 Swiss chard
5 jalapeño
3 banana peppers
3-7 kale
3 spinach

These are all from seed.
The numbers represent sprouts. I have 3 more spinach seeds that have not come up yet.

As you can see they are in little containers for now. I plan to move them into bigger containers. I have five 5-gallon containers, and 20+ 1/2 gal juice/milk cartons, and also various other pots.

I don't have space to plant them in the front/back yard, nor do I have the means to protect them from them the wildlife. They go outside during the day, and come inside at night. And get inspected each time. I've come to the realization that I may not have a huge harvest this year (since I'm not planting in the ground), but I would like to have something. To share with myself, family, and possibly my community. These plants have never seen, or had anything other than the following: miracle gro soil, water, miracle gro water soluble fert (in minute amounts), spearmint tea, water/H2O2 (3%) in 1:16 ratio, sun, and eventually will get miracle gro organic fert pellets for veggies (when they go into bigger pots). So I'm trying very hard to keep them very sheltered. At least for this season. I am thinking something crazy like maybe a planting few plants in the ground, but I have a chihuahua and no means to shelter them from her. And her duty to nature...

I have a plan somewhat, but would just like to ask for advice or if anyone has any ideas to better cultivate them to produce a better harvest, than what I am thinking. Otherwise, a good luck would be very much appreciated! Thank you.

Put up a rabbit guard fence, teach the dog manners and put the vegetables in the ground.

Unfortunately, I don't have the resources or option to do that.

Anyone else got any ideas for companion planting at the least in the pots I mentioned?

I read that the pepper plants only grow 12-18 in downward and like to spread out just as much. I am thinking to plant them in my 1/2 gallon containers. Also, I will plant my kale and chard in 1/2 gallon containers.

The squash and cukes and tomatoes will go in the 5-gallon buckets. 1 squash, 1 cuke and 1 tomato plant, in each 5 gallon bucket.

Has anyone else tried this? Or has done it in a different way?

Each 5-gallon bucket can hold 1 tomato OR 2 cucumbers or squash OR 3 - 4 peppers. Put the half gallon containers in the recycle.

Thank you. I will alter my plan accordingly. Looks like I will be giving away plants!

I will also be trying some unorthodox planting then.

I will try to get a few more 5+ gallon containers.

This will be interesting...