Question for the market pros on here. What's the best business brokerage platform for an LLC?

I'm setting up a business entity (LLC) for trading and trying to figure out how to best navigate this from incorporation to choosing appropriate brokerage platforms that are business friendly. Narrowed it down to these:

Fidelity - Overall ok in terms of access a wide array of tickers but lots of holes with customer service and the interface is stuck in the early 2000s.

Composertrade - Offers a more automated approach to algorithmic trading.

Robinhood - Still haven't able to clarify if their have an offering for LLCs or if restricted to individuals still.

What do you use for business trading - any pros/cons I should be aware of?