You can try E*TRADE. Or if you can afford it just open a new brokerage account double your shares. Are you sure it doesn’t allow you ? What brokerage do You have. Check to see if your broker has a “limit” order that may work.
Try TD Ameritrade. Open a new account and fund it with your HMNY shares. However, I'd suggest you fund this account with some cash first, then transfer your HMNY garbage.