I don't believe there's a guide really. It depends if you're happy to train in wild. At your level these are my suggestions:

Wild;
Rats
Castle muggers
Thugs
Ghosts

None wild:
Guard dogs
Hob goblins (level 48)
Skeletons

Personally I'd strongly recommend doing slayer for combat exp. Slayer is a great, but very long skill to train. However the various NPC's you fight are all aggressive whilst on a task, regardless of your combat level. At your stats id suggest starting slayer with Archmage Sal, pretty much directly south from the Varrock teleport spot.