My favourite pen has been discontinued, and that has truly destroyed my soul - however, it is an opportunity for me to lower the amount of plastic waste I generate in this world, as I go through a LOT of pens, so... Who has pen recommendations?

I'm a black ink roller guy - I prefer the rich black you get with gel ink, and the ease of writing.

Ideally I'd find someone who sells the internal gel cartridges and refill an outer pen "case" kind of thing, if you catch my drift. It's not perfect but it's still less waste.

Will happily receive recommendations for both the black gel ink refills and the outer cases.

For those expecting me to be a fancy pen purist, please, behold, my favourite pen.

(I am however very snooty when it comes to biros. I cannot and will not use them unless I absolutely have to write on something shiny)