Sub for mid bass?

.c2

Hello audio guru's

I would like some more mid bass but do not necessarily know my options here... Ideally I would like something like the bazooka tube that I can just stick in floor of my hatch but I am fairly clueless when it comes to audio. The options I'm looking at atm are
1) Get a sub that hits mids?
2) A pair of speakers for the rear that has good and strong mid bass

I don't have a problem adding an amp to either of the two options. Currently I like my highs from my front speakers/tweeters and my lows from my one 10" sub in the back. Can someone help me shed some light on this, what would I be looking to get if I were to get a sub or a pair of speakers for mid bass? I'm not an audiophile by any means, just that I'm really really lacking the thump atm for mids lol

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