SOLOING
Being able to kill things by yourself was never a strong point the developers wanted to focus on, as FFXI was designed to be a game with a close community. Because of this it is very difficult to kill things solo after Lv10 with very few exceptions.
At Lv75 most jobs can kill Easy Prey enemies, but that’s about it. This is helpful if you just want to get a tiny bit of XP (perhaps to recap or finish a Merit) but isn’t practical to play through every level.
In this section the jobs which do have average to good chances of soloing more than Easy Prey will be looked at and unique suggestions offered. After which some general tips for the other jobs are listed.
Who can solo?
As mentioned above technically every job can solo, but only Easy Prey. At a stretch some jobs can kill Decent Challenge and Even Match but only specific generally weak enemies such as crab types. Small combinations can also handle themselves pretty well a Ninja and a Bard can duo pretty strong stuff).
The jobs which have more options for soloing than the others are as follows; Beastmaster, Summoner, Dragoon, and Blue Mage. Note that combinations of these jobs fair very well also.