Most of us already have speakers when we make these recommendations but if you're looking to get started with an good inexpensive set of speakers the Infinity P163 and 363 would be a very good choice, especially when they're on sale.
the Pioneer Andrew Jones FS52 and BS22 speakers are also very good speakers for those on a budget. Which one is better? That's up to the listener. Speaker preference is subjective, one person may like one over the other as we all hear things differently.
You may want to buy new speakers 5-7 years down the road because your listening preferences may change or you have a larger budget. I have different speakers than I did 7 years ago.
There is no one speaker fits all.
What's your current budget?