Which smartphone should I get?

Right now I have a flip phone that I've owned for almost 7 years, and it's been giving signs that it's going to die soon. I also have an iPod Touch (4th generation) that's about to die too. The battery life is getting shorter in both devices and certain buttons don't work in both of them either, like the on and off button for my iPod doesn't work anymore. It's a miracle that I can still use it lol. Pretty soon I will have money to get a new phone and I want a smartphone for 3 reasons:

1) I'm 20 years old and I just want a smartphone lol.
2) They work better than flip phones.
3) I want a phone that's like a combo of my iPod and phone, and I don't want it to be an iPhone because it's too expensive.

My budget is $100 or less. I want to buy an Android phone because I can get the same exact apps like what iTunes has because I have apps on my iPod that I want to keep, and also the new company I want to switch to only has Android phones. Like I just said, I'm switching companies too because I'm tired of the current company I'm with and this new company gets better reception, especially where I live! So upgrading to a better phone won't work for me.

I truly don't need anything fancy, but I do want to keep those apps that I have on my iPod so I guess I have to go with a more expensive phone. That's why my budget is $100 or less. I don't want to go past 100 if I don't need too.

Sorry for rambling but do you have any advise for me? Any suggestions would be great too! Thank you!

Added (1). Something I should say about wanting to get the same apps: I mean't to say that those apps that I currently have and want to keep are also available on Android.

You can get a refurbished iPhone 4S for about $100. I would recommend you set a higher budget so that you can get a better phone.
Or get a refurbished Samsung S4.

If you want a good phone for a cheap price, you can get a used iphone SE, or iphone 6. There are really good and cheap. If your not a fan of Apple, then you can get a s5 active

https://www.slashgear.com/10-android-smartphones-that-cost-less-than-40-2017-28483419/

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