Slapper:
I'm loving your idea of scratching the Riviera event & having the PGA Tour donate the purse for relief.
How about one better (like what occurred during COVID):
Get four marquis players to play an 18 hole event, prize winnings donated to the winners SoCal Charity of Choice for fire relief. Lots of big companies can sponsor long drive, birdie challanges, closets to the pin, etc since the funds will be donated to a charity and thus become a tax deductible contribution.
I'm thinking there could be a private club - out of the area of damage - that could/would host, with TV coverage - much like Seminole did during COVID.
Just my $0.02