At first, the post-dunes/pre-30’s ranges tend to look pretty bleak. Almost everyone hates leveling in this range, and they often will either push through it as fast as possible or just do like I usually do and PL themselves with an alt all the way to 37. However, during most EST prime times (especially on weekends), Dunes/Qufim/Landing are bustling with people. If you’re perpetually seeking during off-hours, you’re probably best either just asking around to make your own party, or soloing/dual-boxing through the earlier level ranges.
There are a number of linkshells and discords that people have put together to try and help people get parties going, too. You can send me a /t in-game if you’d like an invite. I’m sure Fujin, Camper, or a number of other folks wouldn’t mind shooting out invites, too.
All that said, when you’re ready to get to the grind, there are some great recommendations here:viewtopic.php?f=6&t=12057&hilit=Leveling+locations#p68137
Though, some of them are pretty rarely used, honestly.
My personal favorites:
1-12: solo in lowbie areas, focus on EP/DCs
12-20-ish: dunes or buburimu (or just keep soloing EP/DCs in the Crag zones)
20-25: sync down to dunes more, Qufim, or flies in Gusgen Mines (PL recommended, it’s link city down there)
25-32: do anything you can to sync up for Carpenter’s Landing, it’s amazing exp for this range. There are two perfectly viable camps at each inlet/beach area when you enter from east of Jugner OP
32-52: many options here, but for the fastest possible exp you’re gonna want Crawler’s Nest 100%. Unfortunately, there’s really only one viable 32-sync camp (assuming your group is killing fast). More open up as you get toward 38-ish. Use and abuse level sync as much as possible, even if it means just letting a person (or two) leech a bit.. five-figure exp/hr is readily attainable through this entire range with even a mediocre setup and open camps.
52-56?-ish: KRT is most common, but if you’re with a number of good/trustworthy players and feeling a bit adventurous, go down to Den of Rancor. There’s a camp almost dead-center of the map past the paintbrush room that is pretty nuts. A roaming party is optimal but can also be done with a good/busy puller (BRD highly highly recommended for pulling here, as there will have to be links if you want to pull efficiently). Bonus points for people that can keep syncing multiple jobs!
54-ish: you can go fight for birbs in Wajaom if you like. Great exp but not as many viable camps as many people seem to think... if you take the Leypoint you can pretty much expect 1-2 groups to come camp on the outskirts before too long.
As you close in on the early/mid 60’s, options start getting pretty diverse. B.Tree has 1-2 awesome camps (2 mediocre camps or 1 really really good camp, if you can kill fast enough), Mt. Z has a fantastic bomb camp right near the staging point as well as fly/crawler camps throughout, Caedarva has a number of camps from 65-merit, and then there are a number of niche/“burn” camps all over the place.