i use any pens i can get my hands on as sometimes i forget to bring stuff
however ive found the ones that they give out for free at dolton house can write 1600-2000 words in 40mins (this is for creative where your thinking is smooth that u can write non stop for 40mins) and in esays a bit less arround 1.2k words
sadly ran out of the dolton house pens so im using some papermate injoy gel 0.7 which allows u to write slanted and since its thick teacher can c ur writing
wouldnt reccomend going with "muji" pens as they are the proclaimed weaboo pens and every weaboo thinks that theyre godly pens just because they come from japan but in reality theyre just messy inky poorly made pens