In your opinion/experience, what is the best nib to you?

I posted here about which type of nib to get for my JinHao x450 and I've set on a fine nib. Now I need to know which nib to buy, and which size. I've heard that goulet pens has some nice ones but me being new to fountain pens, idk which one to get. The price doesn't matter as much as the writing quality and how much ink it'll use. But I can't justify spending hundreds of dollars to put into a $8 pen.