Hazel x Alexander (Halexander?? Idk what the ship name's called-):
This ship is very cute, and they get along, and therefore isn't toxic at all, and also canon :D
10/10
Haisy (Hazel x Daisy):
I also ship this! :) Tbh when I first read the series (especially in Murder Most Unladylile, Arsenic For Tea and Jolly Foul Play) that Daisy was in love with Hazel (this was before Martita and Amina) and also that Hazel might have liked Daisy in Murder Most Unladylike when they first met and also the end in Death Sets Sail seemed not THAT platonic, though it might just be me-
10/10 (9/10 if I wasn't being biased)
Damina (Daisy x Amina):
Y e s this is also cute and I ship this too :D They both like each other and there isn't anything toxic in this ship either
10/10
Lavinia x George:
I like this ship, though idk if they actually like each other or if they are using each other to cover up the fact that they are both Gays and are just friends, though if they are the first, then I don't see much problem (and I would rate 10/10), buttt if they are the second, then... idk
George x Alexander:
I also love this ship and I feel like George was in love with / liked Alexander but gave him up for Hazel-
9/10 (since it can't become canon ;-;)
Kitty x Beanie:
THIS. This SHOULD'VE become canon and you can't convince me otherwise
10/10
Kitty x Beanie x Lavinia:
I feel like before Lavinia met George they would've all liked each other and would've been in a Polyamorous relationship, though that's just what I think
9/10
Alexander x Daisy:
N O just N O. Daisy is a Lesbian (it's canon / confirmed) and although Alexander had a crush on Daisy in Mistletoe and Murder he does not like her in that way any more!
0/10 (unless it's platonic)
George x Daisy:
Again, Daisy is a Lesbian, and this time neither of them are interested in each other romantically!
0/10 (unless it's platonic)

I think that's all, but tell me if I missed any in the comments and I'll rate it (sorry if I sounded rude near the end)