ADA - I LOVE LOVE LOVE THEM they're dear to my heart and I miss the days where they were all together just solving crimes.. and I really really hope Sigma gets to join them after this current arc is done

Port Mafia - I'm not as crazy about them as other people in this fandom are but they're still very dear to my heart and a lot of great characters come from there (AKUTAGAWAAAAA)

Guild - half of the group kinda got forgotten and that's so sad but I love them regardless!! I hope we'll get to see more of them in the future

Rats in the House of the Dead - BRING BACK IVAN AND PUSHKIN (also Mushitarou is part of this org and I love Mushitarou, yay!)

Decay of Angels - I'm obviously biased because Fyodor and Nikolai are part of this org (especially biased because of Nikolai) but they are hands down my favorite, I love their aesthetic, their goals, how perfect their plans are yet how disorganised they are as a group.. they're my everything (just kinda sad how we never got to see all five at once at some point but ah well)

Hunting Dogs - they're ok. I love the characters individually (especially Tachihara, Teruko and Teccho) but I don't think about this org as often as I do about others

Mimic - BRUTAL, they may have only appeared in a LN but their story, goal, etc. was so tragic and yet their methods of reaching their goals so brutal

Order of the Clock Tower - so far we've only really met Agatha Christie but as an Umineko fan I'm biased towards her and I cannot wait for her and the rest of the OOTCT to feature more prominently AHHHHHHHH