This is my personal list of ink reviews based on my usage and preferences. Black ink unless otherwise noted.
Caran D’Arche 0.7mm (parker style)
Very smooth and dark on the page makes writing with it very clear. Ink takes awhile to dry so smudging happens frequently if I’m not careful.
Ohto Ceramic Gel Pen Refill 0.5mm (PG-M05NP, parker style, needle tip)
Writing is not consistently smooth and sometimes needs more pressure on the paper to write. Drying is relatively fast but heavier spots will still smudge a few seconds after writing. I would prefer a 0.7mm point but at time of writing, they do not make one.
Ohto Flash Dry Gel Pen Refill 0.5mm (PG-105NP, parker style, needle tip)
Much smoother than the Ohto Ceramic roller ball refill and the same dry time. Definitely recommend these over the PG-M05NP.
Ohto Ballpoint Refill 0.7mm (PS-107NP, parker style, needle tip)
Smooth writing but the ink is very light for a 0.7mm and it’s signficantly lighter than the Ohto Flash Dry Gel ink refill.