Since joining Real Madrid on Jul 17, 2014, Toni Kroos has won quite a lot of titles with his colleagues and favorite team. Toni Kroos has won 4 Champions League titles, 5 Club World Cups, 4 La Ligas, 4 Super Cups, 4 UEFA Super Cups and several other prestigious titles. He is clearly a legend who will be remembered, so I will not easily forget one of the best midfielders.
Luka Modric is certainly more successful than Toni Kroos, his title win with Real Madrid is the best proof. Modric has won 24 titles with Real Madrid since joining in 2012, that was only 2 years before Kroos joined. Both players are club legends, but I don't think they will be as widely remembered as Ronaldo.
Toni Kroos is a senior player at Real Madrid with Luka Modric and both of them have achieved quite impressive titles with Real Madrid. It is fitting that he be remembered as a Los Blancos Club Legend because his contribution was so real to the team during his career there. After both of them left, Real Madrid lost a very important player in their glorious era and both of them will always be the most successful part of Real Madrid.
Ronaldo has a much more famous reputation than these two players, so it is natural that he has differences. But overall, all the players who are in the same club as Ronaldo have above average abilities so it is natural that they become legends who should be remembered for Real Madrid.