I can vouch for the Pentel EnerGel recommendation.
As a left-handed person who tends to smudge a lot of other inks, EnerGels write smoothly without smudging. They're also cheap enough to buy a whole pack and not worry about losing them.
Pentel Energel 0.7mm is the best pen I've ever used, period. Effortless writing with almost no friction. Clear contrasty quick-drying ink. Never too much ink (blotchy) or too little (streaky).
I don't trust the recommendations of this page. They recommend pens as blanket statements not mentioning size, and that's just... wrong. and imprecise. For example, the Pentel Energel 1.0mm is too blotchy. The 0.5mm is too scratchy. The 0.7mm is just right. Also their uniball recommendation is strange. I've tried all kinds of uniball pens and never liked any of them. They seemed to require too much effort, or had ink that wouldn't go down cleanly.
Agreed. These are gold for lefties. I have yet to find a better pen. It's a joy to use and the .5mm ball also makes my writing look very neat and tidy.
As a left-handed person who tends to smudge a lot of other inks, EnerGels write smoothly without smudging. They're also cheap enough to buy a whole pack and not worry about losing them.