@giflian this reply might help :)
https://mstdn.games/@britt/117604707736747749
I’m also a lefty. I’ve learned to embrace the handwriting chaos as a uniquely fun part of my quirky character.
As for paper… Midori is wonderful if you want high gsm paper in a larger lay flat notebook. I also really like Tomoe River paper, it’s thin and ink looks amazing on it.
Edit to answer 2nd post: I do either or and my regular handwriting is a mix of print and cursive because I’m chaotic like that.
Edited again because I forgot to add that I have a few fountain pens in fine and medium nibs. Some Lamy Safari and AL-Star, some Pilot Prera and some Pilot Kakuno. I’d recommend the Kakuno to start, even as a lefty!