Wifi options on the go so I can use Siri for music playback

I tried that app. And some others and that particular app didn't find any WiFi near me where I am right now so it's not very promising. And I currently use the basic voice control to do the playlists hands free but it's not that great cause it's always misinterpreting what I say (it likes to play the playlist fall out boy a lot and well... I never ask it to play that list.) siri is way better at understanding and you can ask to play a specific song and not have to say songs by this artist. I know songs not who sings them most of the time. I have a ton of songs and can't remember who sings what. Anyway thanks for the help I am thinking about getting a mifi device or looking more into them. It beats going out and spending $700 on a new radio. I have Verizon right now and was wondering about the jet pack. Did it work well?

I have a ton of Playlists I just don't want to make special ones with favorite songs because basically I have racing thoughts. And if I hear one song it can trigger a ton of different feelings or memories and could go any way with what song it reminds me of and which song I want to hear next. So that might not work out so well.

I have switched to sprint to try to get unlimited data to use a mobile Hotspot for siri to be used but I didn't know mobile Hotspot through sprint is charged extra and you don't get unlimited data for that. I am just worried I will use a Hotspot and burn through data just using siri for a little bit of music playback only...