I'm very partial to ZIG pens! they have lots of different widths that are very prescise. My favorite jack-of-all-trades pen is the 0.8 point pen.
I like SANFORD uniball Signo Micros for everyday use, but COPIC Multiliner SPs are great for technical pens with some very fine nibs and the fact that they are cartridge pens that seal well internally, are pretty much pens that can outlive you.
I like a cheesy, craft type pen called LePen by Marvy. Faber Castells are nice and black. I also like a fountain pen, Harbin, because there are so many ink colors. I did like the Copic Multiliner, but when refilling, there have been problems getting the ink to flow.
Thanks for asking.
Just trying out set of 6 Staedtler Pigment Liners ($NZD19 )
0.05 / 0.1 / 0.2 / 0.3 / 0.5 / 0.8.
Fine-liners for writing, sketching and drawing.
Long metal tip, ideal for use with rulers and templates.
Can be left uncapped for 18 hours without drying up.
Lightfast and waterproof ink. Erasable when used on tracing paper.
No bleeding when highlighted.
Stabilo liner 308 - black Med
2 Rotring Variant - fillable - had these 25+years