A decent multi would be good. I like Volkl Power Fibre II and Tecnifibre NRG2 but they are expensive as sets - reel price is better on both.
Low priced multis - maybe TF MultiFeel, Bab Addition, of AlphaGut 2000. I have played all of these and they are very good.
Syn gut would be another less expensive choice - Volkl Syn Gut, Pro Supex Spiral Flex, Gosen, or Klip Kicker are all good.