Nylander 5x8 would probably work. 1 st 2nd 3rd wouldn’t be out of line as a value and would screw with the leafs cap. And if toronto is offering something like 7x6.5 or something he still would only be down 5.5 million over 2 less years.
Teams currently with 8 mil in cap space: Vegas, Vancouver, Arizona, Winnipeg, Philadelphia, NY Islanders, Colorado,New Jersey, Carolina
Vegas: Still needs to sign Shea Theodore, so that would eat a chunk of their 8.7 in space.
Vancouver: Hosting the 2019 Draft, so seems unlikely they'd move their 1st
Arizona: 50 contract limit, probably don't have the budget to be offering 8 million (plus how would that affect Clayton Keller's next deal)
Winnipeg: Still needs to sign Josh Morrissey, plus Laine/Trouba long term
Philadelphia: C/RW not the biggest need
NY Islanders: Don't have their 2019 2nd
New Jersey: Don't have their 2019 3rd
Carolina: Probably don't have the budget
So that leaves us with Colorado, but giving an expensive offer sheet for Nylander would/could affect Mikko Rantanen's asking price.