to be the medium's most exciting genre, there are plenty of excellent series that immerse the viewer through well-written drama and action-packed matches. Instead of using cool power systems or magical weaponry, sports anime applies the high-stakes action of shonen to every sport imaginable.
Free! it's a very short swimming anime for you to marathon, it's very teenage so if you're older I recommend another one, haikyu, and kuroko are the most relevant sports animes, I may be forgetting some but these, especially kuroko is more similar with blue lock