Thought it would be good to have something on this site that makes for a quick way to look at all the best current seeds for each mission. Feel free to add your own. Some are better for solo, others for duo or more.

Blacksite:
Rookie Ironman has fixed RNG, is actually pretty good

Financier:
657118
3 (Duo+)

Deposit:
212041 (Duo+)

Lakehouse:
176744 (Duo+)
150468

Withdrawal:
173625
78836

Scientist:
642727 (Duo+)

Auction:
728389 (Duo+)

Gala:
1

Cache:
423231

Killhouse:
664069

66311 for deposit operative (duo+)

how to make a seed

Question for Ironman Rookie speedrunning, I know pierre posted this but I'm wondering about the other seeds in ironman rookie. Here are the seeds that pierre posted, (? = unknown, please tell me)
Blacksite : ?
Financier : 3
Deposit : ?
Lakehouse : ?
Withdrawal : 33
Scientist : ?
SCRS : 1
Black Dusk : 1

I am pretty sure that the Blacksite seed is 3. It appeared on top of the screen with this glitch:
Me and someone else did a glitch where we did the financier speedrun lobby and click on Ironman and started an Ironman Rookie game, we completed the Blacksite with the same RNG from Ironman Rookie.

Sadly, we can't continued this journey as it didn't teleport us to the next mission, The Financier.

this is from year ago, most seeds couldve been overrated already

If your going for a Trio Legend Run of The Deposit (which after 6 months nobody has done) and you want to follow my run then our seed was 921509