apologies but there's gonna be some exaggeration since it's passion
music
http://www.mangago.zone/read-manga/beck/
http://www.mangago.zone/read-manga/shiori_experience_jimi_na_watashi_to_hen_na_oji_san/
http://www.mangago.zone/read-manga/aozora_yell/
http://www.mangago.zone/read-manga/kuuden_noise_no_himegimi/
boxing (sorry its sports but its really good)
http://www.mangago.zone/read-manga/rrr/
cooking
http://www.mangago.zone/read-manga/bambino/
visual arts
http://www.mangago.zone/read-manga/shuukan_shounen_hachi/
If its about acting you can try glass mask and acf-age! Both are chasing their dreams and pasion for acting. But sadly glass manga has been on hiatus for so long and act-age is discontinued :(
Are there any realistic manga with protags chasing a passion?
Examples would be Blue Period and Ippo. Preferably not sports genre.
Thank you in advance!