NIN - u got kannagi. Im not sure how well kikoku does dual wielding these 2 katana. Maybe read ninja forums and see what others say
DNC / THF - Dnc cant use mandau so twashtar may be better option for dnc and thf
BLU / PLD - almace u doing and blu cant use excal
PLD - aegis If you not building Ochain ? Even if you are doing ochain aegis can be a better option for some fights
Id recommend kikoku or aegis of jobs u like. Or as you using BST alot in dyna do guttler?
Twashtar - Atm with the current drop rate/price of plates won't go past lvl 90.
Almace - Read above.
Ochain/Aegis - if you do any of the old conted with this job well you sure need to change your play style , since any dd can do what pld does and even more with the support of a whm and proper gears( mule , friend , mercenary etc).
Kikoku - Lvl 85 Kannagi says Hi.
Guttler - Useless weapon for a useless job.
Excalibur - Great sword with a well geared pld but I made my point on the ochain/aegis step
Mandau - probably the only one worthing to make about those mentioned above same applies for apoc , youchi , annilathor, amano, Ghorn
and bravura too.
If you want to save yourself from the frustation of doing dynamis with 40 other people in the zone everyday sell your stuffs and go for something less frustating or farm gils and buy coins.
Make a relic just from dynamis requires time about 4-5 months getting 150ish coins/run and with 40 people to play against in a zone, I doubt you would make that much everytime.
This is frustanting , I did it I'm trying again, I'm giving up pretty fast, doing /sea at every hour of the day and see not a single zone with less than 20-50 players makes me skip dynamis for about half of the week.
Madau would be my choise if I were you, GL with whatever you're doing/making.