My most preferred Diatonic harmonicas are too many to mention 
But I love Hohner Marine Band, Thunderbird, Crossover, Meisterklasse and Rocket low the most… Then I also play Hohner Blue’s Harp and Pro harp. Including Suzuki Manji, Overdrive, Blue’s master & also one Seydel Blue’s Session. I also play many different varieties of Chromatic Harmonicas… But I am
Unable to understand this Question 🙋 Is it referring to Chromatic or Diatonic Harmonicas … Customised Harmonicas I don’t play… Because I don’t swing and sway my Hips on stage… I am a hobby player since 1977…Then it’s also about affordability and worth not such grand expenditure… If no £ return is coming back from playing around on professional level. I assume the overgrown gentry is mature enough to realise fancying those customised TOY’S