Q: What should I buy as a beginner?

A: This, of course, depends entirely on what you want to do. If you have a
reasonable knowledge of music and you want to play Jazz or classical music,
a chromatic harmonica is probably best. If you want to play blues or folk
music or the likes, a diatonic is best.

For blues you would not want to have a tremolo or octave tuned harmonica,
because you can’t get the juicy bends you need for blues on these.

Chord- and bass harmonicas are more specialized.
Quality, medium priced harmonicas are the Hohner Chromonica (Chromatic),
Hohner Marine Band and Special 20 and Tombo Lee Oskar (diatonic) — BB