But if you want my opinion here r some names that could be used
(Most Original) Luna
(This actually is a rumor but peep say that some of these names gives lunatone's extra stats when named, you need to check name rater and if he is shocked (exclamation mark) that means u have a special name which equals extra stats)
Special Names that were tried out (took so long to find one):
ToneStar, DeathStar, Monete, Monique, dunno if this works for some but I tried these and saw that there was extra stats and at lvl 80 it fixed almost half of it's stats compared to lvl 100 pokemon