yes in canada there is an alliance between some mafia groups in MTL and members of the MTL hells angels chapter.
but not all mafia cells in MTL work w/ the HA or only w/ the MTL chapter.

one alliance revealed in project hobart 2019 was between the figliomeni locale in toronto and members/associates of the london,ontario HA chapter.
but again not every 'ndrangheta group works with the HA or bikers at all.

and to be honest for the most part theses alliances work very well and historically produce vast amounts of money.

some american mafia families should take a page out of the canadian mafias book and do the same. along the east coast the numbers of chapters popping up has only been increasing in the last few years among the pagans especially.

some families have shown before that they would work with the pagans mc,one being the philadelphia family.the name steve mondevegine comes to mind i believe he has recently been installed as pres of a chapter in the philadelphia area. he has long been an associate of joseph merlino boss of the family.

the pagans mc has also been expanding across the state of new jersey swallowing up territory quite possibly becoming the dominant OC group in the state.
with that being said at some point the mafia families that operate in NJ will have to work with the pagans.

and working with another group even bikers should not be viewed as such a bad thing. bikers generally are more ready to perform the street level muscle that todays average mafia member doesn't or will not perform.as was mentioned above most bikers will take a pinch and the jail time offering another layer of insulation for a mafia member.comments on this forum about todays mafia soldier being soft,too old,lazy,stupid,extinct you name it abound.
so why wouldn't a soldier or associate use bikers or street gangs to do the work that they will not?

as has been established on this site the number of active mafia members on the east coast is slowly going down.
the areas that the mafia had historically operated in/controlled is shrinking.
in order for some mafia families to still maintain influence in these areas they will need to make alliances w/ other families,biker mc and even street gangs.

i realize this is just a theory and not one shared by many on this forum but the mafia members across ontario and quebec came to this conclusion a long time ago.
the canadian mafia also came to the conclusion that creating alliances with the HA is a much better business decision than fighting them for territory.