Bench-(baseball one-shot) not memorable but still cute for a fast read.
My Heart Is Beating-(water polo)if you don't mind gender bender...though there is some romance I would still recommend it!
Nononono-(ski jumping) another gender bender with some kinda awkward romance (I wouldn't really peg this as a romantic manga... But idk the reason you don't like romance) just warning you there are some perverted characters and its echi. If you don't mind that stuff it's a good manga
Mirai no Football-(football-soccer) time travel, pretty short
Seconding Go Ahead-(hockey) the characters are kinda young though...
And of course, my first sports manga, Area no Kishi (football-soccer), I loved that one kinda biased because it was one of my first manga...but I can say that it's good (because I've retread it)
Also, I will second Last Inning (baseball) as I really liked this one!

I wish you liked fighting sports, they are my favorite

^It's not that I don't like romance, I'm just tired of it. But I'm ok with the romance in Baby Steps, so~

Also, I do like fighting sports, I just read too many stuff with fighting.

Thanks for the suggestions guys ~