THIS IS A NEED AND A WANT

Chasing + groveling arc maybe in 'Sand castle'!

I know right
So I think you've already read it but the third ending
https://www.mangago.me/read-manga/the_third_ending/

And one of my faves is banana scandal side couple
It's not complete here though
https://www.mangago.me/read-manga/bbanana_scandal/

And the water side night https://www.mangago.me/read-manga/night_by_the_sea/

And this one's going to have one soon I'm so excited for this
To me who doesn't love you
https://www.mangago.me/read-manga/to_me_who_doesn_t_love_you_team_hazama/

I think it all depends on your definition of a chasing arc (￣∇￣"), and I didn't know if you wanted ongoing of completed so please check, I did my best so I hope you enjoy some

Established chasing arcs:
https://www.mangago.me/read-manga/feel_my_benefit/
https://www.mangago.me/read-manga/jinx/
https://www.mangago.me/read-manga/the_third_ending/
https://www.mangago.me/read-manga/bj_alex/
https://www.mangago.me/read-manga/love_is_an_illusion/
https://www.mangago.me/read-manga/pear_blossom_love/
https://www.mangago.me/read-manga/sekaiichi_hatsukoi/
https://www.mangago.me/read-manga/symbiotic_relationship_between_the_sun_and_the_moon/
https://www.mangago.me/read-manga/it_starts_with_isaac/
https://www.mangago.me/read-manga/honey_coated_s_class_guide/
https://www.mangago.me/read-manga/introducing_my_manager/
https://www.mangago.me/read-manga/crossing_the_line_1/

Depends on the definition you are looking for chasing arcs:
https://www.mangago.me/read-manga/summoning_a_bl_fan_to_another_world/
https://www.mangago.me/read-manga/kiss_me_liar/
https://www.mangago.me/read-manga/therapy_game/
https://www.mangago.me/read-manga/the_position_has_changed/
https://www.mangago.me/read-manga/cherry_blossoms_after_winter/
https://www.mangago.me/read-manga/passion_1/