Good sports manga with good art. Ive read : haikyuu, bluelock, yuri on ice, free, kuroke n...

Um..just clarifying that i need more sports mangas...this post is not just listing what ive read... (i should go to sleep)

https://www.mangago.zone/read-manga/moon_land/ (gymnastics)
https://www.mangago.zone/read-manga/st_r_strike_it_rich/ (boxing)
https://www.mangago.zone/read-manga/kokou_no_hito/ (mountain climbing)
https://www.mangago.zone/read-manga/medalist/ (ice skating)

I'm unsure what you would consider good art, but I would like to highlight: Ashita No Joe. An absolutely amazing manga and anime. It's old, like old old, like 1968 old, but maaan it has plot and moral, and of course sport. In anime you can see scans of all hand drawn stuff.

Besides that, you can check out, they have different art. Hopefully something catches your eye:
Hajime no Ippo;
Real(same author as slam dunk);
Slam Dunk;
Chihayafuru (it's about a game, but classified as sports);
Burning Kabaddi;
Kokou No Hito (same author as Innocent, so the art is really really good. Tho I don't know if it's to your liking);
Initial D;
Rrr;
BE BLUES;
Act Out!;
DOGSRED;
Irregulars;
Rikudou;
Toppu Gp;
Tetsugaku Letra;
Bungo;
WonDance;
Medalist;
Ao Ashi;
Moon Land;
Saotome-Senshu, Hitakakusu;
Atarashii Ashi de Kakenukero.;
Red Blue;
Seishun X Kikanjuu;

Also there's Tsurune animated by Kyoto Animations (same studio as FREE), tho the original is a novel

salad days (tang liuzang) webtoon

(mc is a ballet dancer, ml is a boxer, also has a novel counterpart that is low-key better then the the webtoon lol, they literally made both the mc and ml way less attractive in the webtoon compared to the novel, just take one glance at the novel cover and them in the webtoon lmaoo)

https://www.mangago.zone/read-manga/salad_days_tang_liuzang/

here’s one of the novel covers to clarify what I mean:

https://www.amazon.ca/Salad-Days-Jing-Shui-Bian/dp/1774083132 and the second book cover just rubs salt in the damn wound too