NO PAYWALL DOWNLOAD: https://osustats.ppy.sh/collection/17704
focus on stamina with some speed/finger control/flow aim. Should work for essentially all levels of players as many maps can be dted. Strongly encourage pairing these with osutrainer. There is a very diverse set of maps and so you are able to practice a lot of stamina based skillsets in addition to just stamina. (Also I tried to avoid too much flow aim and low note count which would be considered more speed based but I definitely made some exceptions while doing this but overall every map should be good stamina test in some way). I didn't include some maps that everyone already knows and are super popular and stuff I don't like (glory days lionheart dawn of the dragonstar etc)
For more efficient raw stamina practice, visit this collection: https://osucollector.com/collections/9884/stamina-pack-(crucial)