There are lots of budget 5 strings out there that are really great: Squiers, SX, Ibanez, all kinds of 'em! You'll need to go play a few at a shop if possible to see which string spacing you like. They typically run from 17mm to 19mm at the bridge.
What's your budget?
Carvin 149/5 String 90/Ergo 33/L.O.G. 266/Chi-Love 3/California Bassists 65