JusArt
JusArt Water Brush Pens (6-Pack)
Best for: Urban sketchers and water-soluble pencil users who paint on the go

STAEDTLER
A set of 36 double-ended watercolor brush pens, each with a brush tip and a fine tip, that paint straight from the pen with no tubes or mixing.
Best for: Beginners in hand lettering, journaling and watercolor who want no mixing
The Staedtler Double-Ended Watercolour Brush Pens set has 36 colors, and each pen has two ends: a flexible brush tip for broad strokes and a fine tip for lines and detail. That gives you 72 tips in one set.
Staedtler pitches them as a way to start painting with no intimidating mixing, tubes or fragile nibs, and calls them both fine liner pens and broad stroke watercolor markers. The listing aims them at hand lettering, journaling, coloring and beginners.
Based on the manufacturer's Amazon listing.
A brush tip for broad strokes and lettering, and a fine tip for outlines and small details, so you swap ends instead of pens.
Staedtler counts 36 ink colors and 72 texture options, using the fine tip end or the brush tip end.
Staedtler sells these as watercolor brush pens. Watercolor-style ink is usually softened into a wash with a wet brush, though the listing does not describe that step.
The listing pitches them for beginners who want to pick up a pen and start painting without an intimidating setup.
A flexible brush tip makes thick and thin strokes for calligraphy, and the fine tip works for coloring books and journals.
Look elsewhere if: you want the most colors in one box. The ARTEZA Real Brush Pens set has 96.
Staedtler Double-Ended Watercolor Brush Pens (36)
Choose it for: Two tips on every pen
Faber-Castell Albrecht Durer Watercolor Markers (20)
Choose it for: Lightfast ink for finished work
ARTEZA Real Brush Pens (96 Colors)
Choose it for: The widest color range
JusArt
Best for: Urban sketchers and water-soluble pencil users who paint on the go
ABEIER
Best for: Beginners and students trying gouache on watercolor paper or canvas
DOODLE HOG
Best for: Beginners, letterers and illustrators who blend with water brushes
Soucolor
Best for: Painters of all levels working in watercolor, acrylic or mixed media