This is a Diva by Marleaux. It has 26 “frets”. Or, rather, it would be more appropriate to say it doesn’t have 26 frets, since it is fret-less. You get the idea. But any brand will work. My first fretless was an Alembic where I removed the frets. That is a nice way to get used to a fretless model as well: remove the frets from a fretted bass you are used to and fill with a color sawdust (I’d have that done professionally!) that gives you barely visible lines.

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Read Ariane Cap‘s answer to Is a fretless bass good for an intermediate bass player? on Quora