what ship should i grind towards

as of right now i have a pledged c1 spirit. so i dont have to worry about wipes. im trying to find out what i should grind towards. my plan is to find a ship i ship i can use for cargo hauling, and dip my feet into commodity trading. So something with 100+ SCU of storage would be nice. I also wanna be able to do some light combat, in situations where i might need to defend myself. or maybe even do a bounty or 2. Im trying to stay around the 5 mil mark. but if you have something better or worse that is also fine with me, im just tryna learn