I found out this week that Fidelity has been offering a no fee HSA to individuals since last November. It's a good option if you want to roll over an HSA from a previous employer's account that charges maintenance monthly fees.
In my case I saved $8 a month by switching from HSA Bank/TD Ameritrade.
They also reimburse any transfer fees imposed by your previous account administrator. (With TD it was $50).
If I had known earlier I could have done this months ago and saved some $$$.