General

I leveled up to 120 in 7 hours on my new char for this but was stronger than average for a person at my level.

1-10 Auto
11-30 Flaming Golems, last 5 levels are boring and repetitive
31-35 Golden Beach at the last monster area
36-(40-43) Golden Beach questline
41-50 Drakes in Sleepywood
51-60 Ludi Pq, Easy Zakum
61-70 Scorpions in Ariant
71-120 R&J
100+ Normal Zakum

The biggest trouble I had leveling up was lvl 25-30, and 41-50 because those were the slowest compared to everything else. You can also Ludi Pq at lvl 60 to 70 if you aren't strong enough to do scorpions

Guides are everywhere on youtube but..

1-10 character quests
10-20 Mixed golems
20-30 Surgeon eyes
30-40 Gravis
40-50 Skele dogs
50-70 Drakes
70-140 R&J
140-165 DIPQ
165-200 Strong Hold

Now go level.

10-250 monsters

no training guides on google

anyways I trained at red snails from lots of levels so I think that might be a good choice