Hunting log gets you off to a good start.

Obviously, Fates around the areas of your level.

Leves.

Dungeons.

Exploration every nook and cranny of thing you may have missed.

Area quests you may have missed.

kill everything in your path, from point A to B.


...these ideas may not be 'ideal', but they are the only effective way to get a second class to 50...