Plenty of options really, could go for a pair of Tannoy Mercury F1 speakers, or the Wharfedale Diamond 9.1s, the Monitor Audio BR1s / BR2s or the Mordaunt Short 902is etc. etc. etc. each with their respective partnering centre speaker.
It's really just a case of listening to a few options to make sure they fit in with your requirements and match with your sub. What sub do you have?