You cannot have this many options and choose 1 of them. That is going to be a disaster in today's competitive market.
You need to have a solid understanding of 1 product to be able to get into manufacturing.
Manufacturing is very tricky. First you need to sort out the availability of raw products.
You need to have 4,5 suppliers ready. If your supplier is far away and you are not getting it in bulk, transportation is going to eat a lot of margin.
If you can procure your raw material in the right way, then comes the manufacturing part, mostly you will require skilled laborers, at least few , you need to poach then who are working in some other manufacturing unit. You will have to pay a deposit to these laborers to get them. Then you will have to manage them, if they decide to leave your entire business will come to a halt. You should be able to manage these people, their demands and everything.