Now I have a sizeable collection, but by far my favourite is Faber Castell’s Tamitio which features a collection of italic nibs (I myself use the most modest 1.1 size).
https://www.graf-von-faber-castell.com/products/Calligraphys...
I’d like to chime in with an appreciation for Noodler’s ink. I first encountered it when I was in New York but I stocked up and then returned home and found (happily enough) that now it’s very conveniently available online.