Best top lane?

Garen, Vladimir and Malphite are the best ones to play if you want to climb. Unless you're high diamond and above these three will carry you out of your elo. Vladimir isn't really an easy champion but he's really forgiving even if you fuck up so it's a good choice for low elo players. If you're playing Garen it honestly becomes a challenge to fuck something up, he probably has the simplest kit in the game alongside annie. He's the ideal champion for climbing out of low elos. Malphite is a good choice against AD champions as they get absolutely destroyed against him, which is also a reason why I play him mid if my opponent picks Zed or Talon.