SAKURA
Sakura Pigma Micron (6-Pack)
Best for: Manga artists, graphic designers and journalers who need fine black lines

Ohuhu
Eighteen fineliner pens: 11 colors with a 0.45 mm tip and 7 black pens in different sizes including a brush, all with waterproof pigment ink.
Best for: Journalers, card makers and illustrators who color over ink lines
The Ohuhu Colored Fineliner set is 18 pens: 11 colored fineliners with a medium 0.45 mm tip, and 7 black fineliners in different tip sizes including a brush. The colors are yellow, orange, red, pink, purplish red, purple, blue, sky blue, green, grass green and brown.
All the pens use pigment ink that Ohuhu describes as waterproof and alcohol-resistant, and the listing says they work alongside alcohol markers and watercolors. Ohuhu names detailing, sketches, illustrations, journals, cards and scrapbooks as uses.
Based on the manufacturer's Amazon listing.
Yellow, orange, red, pink, purplish red, purple, blue, sky blue, green, grass green and brown, for colored outlines and details.
005 (0.2 mm), 01 (0.25 mm), 02 (0.3 mm), 03 (0.35 mm), 05 (0.45 mm), 08 (0.5 mm) and a brush tip.
Every colored pen has the same medium 05 tip, listed as 0.45 mm.
The listing says the pigment ink is waterproof and alcohol-resistant, so it is meant to be mixed with alcohol markers or watercolor.
The listing names water-based pens, alcohol markers, colored pencils and watercolors as partners.
Look elsewhere if: you only need black liners. The Ohuhu Fineliners (8 Sizes) set gives black tips from 0.2 to 1 mm plus a brush.
Ohuhu Colored Fineliners (18)
Choose it for: Colored lines plus black
Choose it for: Black only, up to 1 mm
Muchcute Micro Fineliners (12-Pack)
Choose it for: Bolder black sizes
SAKURA
Best for: Manga artists, graphic designers and journalers who need fine black lines
KOUSICOO
Best for: Doodlers, zentangle fans and comic beginners who want many line widths
TWOHANDS
Best for: Technical drawers, illustrators and journalers who switch line widths often