Unlike the first fountain pen where I think it is very difficult to find the perfect pen, I think we have the perfect option for your second pen.
This is for anyone who have had a fountain pen and decided that they like it.
The perfect second pen is the TWSBI Eco. There are a bunch of standard color options, plus more limited editions a few times a year. They have a standard nib line up from EF to 1.1 stub.
Of my current 5 pens in use, two of them are Eco’s. It’s kind of weird having pens I paid like $30 for among a bunch of $150-$200 pens.