Firstrade has been doing so since the middle of last year. Although if you choose to actually EXERCISE an option, rather trading it prior to expiration, then there are fees involved in that.

ETrade's annoucement says that they are eliminating commissions for stock AND option trades. But the fine print says that they're still charging $0.65/contract. Apparently, it doesn't count if they use the phrase "contract charge" instead of "commission". https://about.etrade.com/newsroom/press-releases/article?qmo...

TD Ameritrade just started doing it.

https://www.tdameritrade.com/why-td-ameritrade/free-stock-tr...

There are a bunch of places that do 0 commission but they usually charge a separate fee for the contract (which seems to universally be treated as separate from commission).

Aside from the options others have mentioned, there are a bunch of brokerages that charge a monthly fee and give you unlimited trades. These are targeted at very active traders.