Don't take the money out of the HSA, move the HSA.
I would recommend Fidelity. As
@Steeze says it is fee free. And it has good investment options.
You can request a trustee to trustee transfer, but this often incurs a fee from the HSA you're leaving. You can also make an indirect rollover by withdrawing everything from the old HSA (just like you would if reimbursing yourself for a medical expense), then filling out a form and mailing a check in to Fidelity for the full amount you withdrew. You can do only one indirect rollover per rolling 12 month period (not calendar year). Subsequent indirect rollovers will be disqualified and count as a distribution, which you don't want.
You'll need to fill out Form 8889 when you do your taxes.