San Antonio may be a very good option for the 36th team. Assuming a Quebec City owner has the money, San Antonio, Houston and Atlanta make sense. If San Diego wanted to go and build a new arena I'd say they are another fantastic idea. Portland too but I suppose a prospective owner would've said something by now.
We talked about Portland in one of the other threads about (or getting sidetracked on) expansion. They do have a question of ownership, but it is unique. Prospective owners for an NHL team are also prospective owners for the Trail Blazers......which are not for sale......but are going to be sold.....someday.....at an unspecified time in the future.
Paul Allen (former Trail Blazers owner) mentioned interest in an NHL team when he was alive. It was a passing comment that he made a couple of times, if the price and conditions were right.
He died and his estate, including the Trail Blazers, has been in a trust which is run by his sister, Jody. Nobody knows what conditions Allen specified, specifically, if the Trail Blazers have to be sold at some point. The presumption is the entire estate has to be disposed of. She has said the team will be sold, but has not publicly set a timeline. A couple of offers have been made at around market value ($2B range) and turned down because they are not for sale "at this time."
So there may be prospective owners in Portland, but they are waiting to find out if the chef's masterpiece filet is available before they ask about the pork chop.