Thoughts from a brand new player

[RoyalBeef]

Leveling solo - As far as all the classes go, it is far easier to level tank classes or certain DPS classes. Healers can't do much DPS so they are a pain to level up solo. They're designed to work in groups, but my healer is squishy. So just trading damage to the enemy and myself over time doesn't work well solo. SWTOR is a game I played for years. I really loved the companion system in that game. It was great for story and also for gameplay. Leveling a healer allowed you to pull out a tank or DPS companion and heal them as they were fighting. Some of the magic ranged DPS classes are also a pain to level. I have a slow cast, but have to move out of the way of AoE attacks breaking my cast. These magic classes are also squishy. This reminds me of the Sniper class in SWTOR. They were a turret that couldn't move and could apply high burst DPS with a long "cast" time, and work well in a group setting, but not solo where you need to move. And at low levels, I'm not even seeing the high burst DPS from them.

Leveling some of these classes almost requires a group. But it seems most players are doing the end-game or new expansion content.

Solo leveling as in grinding mobs in the open world is pretty inefficient anyway. You really want to queue up for the highest dungeon you can run and do some FATEs while you wait for the queue to pop. Also afaik there is a nice exp bonus when you kill stuff that is your level, so you want to make use of that as well and not "waste" the levelling roulette on those levels but do it on the inbetween levels that don't yield an exp bonus for a dungeon. So ie. when you are Level 44 you run Dzemael Darkhold 1-2 times till you level up to 45, making full use of the exp bonus as mobs will also be level 44, then when you hit 45 you do the leveling roulette which might get you to 47 where you have the next dungeon available which will again yield that exp bonus for equal level.

Since even endgame players use the levelling roulette for endgame currency or levelling alt jobs there shouldn't be too much trouble queuing up for any low dungeon. I'm levelling a MCH alt atm and my queue times are between insta-pop to like 7-8 mins max so far.