Can the Moon phono accommodate LOMC's? If it can then I would suggest looking in that direction. But there are so many different types, with their individual sound that it would be impossible to recommend something without knowing more about your preferences.
If it cannot, and you generally like the sound of your 10x5 I would suggest looking at a DV 20X-H. It is a nice improvement over the 10x5, and can often be found on here used for a good discount over new. It may be the best HOMC you can buy.
If it cannot, and you generally like the sound of your 10x5 I would suggest looking at a DV 20X-H. It is a nice improvement over the 10x5, and can often be found on here used for a good discount over new. It may be the best HOMC you can buy.