Team sports: men Volleyball, no doubt about it IMO.
2 X World Champions (2014, 2018)
3 x World Cup medalists (bronze in 2015, silver in 2011 and 2019)
3 X World League / Nations league medalists, including 1 win (bronze in 2011, gold in 2012, bronze in 2019)
2 x European Championship bronze medalists (2011, 2019)
1 x European League Bronze Medalists (2015)
Of the other teams, only ski jumping had a similar, long-running history of success in the last 10 years, so they're my number 2. choice
Individual: Here I have far more candidates, but out of sympathy I will chose Kamil Stoch. He already surpassed Malysz in certain aspects (i.e Olympic Games) and it feels like he can end up with more overall wins in his career than Malysz. He achieved amongst others:
3 x olympic gold medals + 1 bronze,
2 x World Cup overall standing winner
2 x Four Hill tournament Winner
1 x Raw Air winner
overall: 34 wins and 68 individual podiums in the World Cup alone