What iPhone models does Apple still offer?

I have to go to Apple tomorrow to get my phone checked out because ever since I've gotten the new software, I've been having a lot of problems and my iphone has been having an adverse reaction to it.So, depending on the outcome, I may have to get a new phone. I want to know what iPhone models that Apple still offers because I really want to get the iPhone 5 (not the 5s or 5c).

How to separately have two devices connected to the same email?

I have an iPod touch and an iPhone. They're both connected to the same apple account and so they have the same email. Whenever I get texts or send them to someone that also has an iPhone it pops up on my iPod and has the whole conversation as if I've been messaging from that device but I've been messaging from my phone, I do I get it to stop doing this?

Not able to visit neighboring towns on Sims Freeplay?

I have Sims Freeplay on my Kindle Fire and my sister has it on her iPhone. When at the Party Boat, I'm able to visit her sim town, but she isn't able to visit mine. My town will show up for her, but nothing happens when she taps it to visit. Is this a fixable glitch?

I got the iPhone 5s. I'm having problems with the screen orientation?

I have the lock off. So the lock is not doing anything. It just stays vertical. I'm not sure what else to do. I know we just have to use the lock thing but that won't work. Please help.

Added (1). I know that the lock is portrait orientation lock. I'm not able to get portrait orientation regardless. If I turn it horizontal the screen is still vertical.

Give me feedback on my business idea?

Ok so I'm 15 and my idea is to bulk buy some skins for a range of digital devices (xbox one, ps4'iphones, blackberry, computers and tablets) these skins would be almost a kind of tattoo that is stylish on a device, I would sell them using cost plus pricing

Alternatively, what about a disc repairing service it would have to be very cheap and I'd have to buy refills often

What should I do with the music I have on my iphone?

Okay so I have about 1400 songs on my iphone 5 and about 75% of it is hip hop/ rap and the other 25% is rock pop and jazz. My problem is that I don't really know what to listen to anymore like I put a song on and I can't feel the music, like I need something to enjoy and music that I would be listening to all the time. Please I need help, also please suggest which other artists I should check out in rap, rock and pop genres?