Question: speakers for denon AVR1312

[scandiskwindows9x]

hello to everyone i need some suggestion in frontal speakers for a Denon receiver AVR1312 my budget is about 500 Dollars and just have seen the Polk TSI 200 bookshelf ones n¿have not heard them already just was wondering any good speaker that produces good bass and trebles? brands that have in stores are KEF-JAMO-Polk-Energy-JBL

any input would be welcomed

best regards
Francisco