Izzy is the man.
UFC 288 and UFC 289 definitely needs some more steam to it, DDP isn't gonna be ready by then tho due to his recent nasal surgery.
So that leaves just Strickland who's maybe not the most deserving, however it's a marketable enough fight and he'll be willing to take it.
If they're not able to find a solid main event for UFC 290 then put on Izzy on there and maybe DDP will be available by that time, but a Izzy/Strickland isn't really intriguing enough in terms of headlining a international fight week card so idk.