I bought a house recently with a pretty impressive hot pepper garden. I know nothing about these! Can anyone help identify them and give me any tips to harvest and use them? I’m not generally into super spicy foods so I’m totally out of my element here. Forgive my horrendous drawings here.

1. These are super wrinkly and dark, and i think they’ve gotten darker red/brown since i took this picture a week ago.
2. (At the top, pink circle, just realized i have two 2’s) These are the same plant, does it matter what color they are when you harvest? Will they turn red after they’ve been picked? Are they sweeter when they’re still yellow or anything like that? Do you pickle them like banana peppers?
3. (Blue circle, in the middle) nothing to say about this. They’re orange-ish? And kind of look squished
4. Are these just “chili peppers”? I would dry them out and then food process them into crushed red pepper flakes, right? That is something I would actually use in my cooking. Any tips here?
5. Pretty sure these are jalapeños
6. I think some of these turned red, but everyone that I found that had turned red looked like it was eaten by an animal or a bug or something. Can these be used at this color? Does it matter?
7. These ones are more red and less “squished” looking than the #2 in the blue circle.

I’m so out of my depth here. Do you dry these? How hot are each of these? Does it matter what color they are when you harvest them? Do you blend them all together with some vinegar and call it hot sauce??? I can’t imagine i’ll eat these all so if there’s something i can do with them to make them sort of giftable, like canning or something, that would be cool. Thank you in advance!
Eta: i’m in USDA zone 6a if that helps?