I know about level II but it only shows closest 25 prices and move very quickly so ..I am interested in bigger picture ...and want to see it like an option chain ..in option chain you can see many open interest at far out of the money strikes ...I want to see something similar in stocks to find out possible support and resistance... I am familiar with bookmap but its not for me so looking for something better. I am mainly asking for swing trading (also day trading but mainly swing)
You would need the full orderbook / depth and rank price by quantity. But as you said, things can change quickly and there is a lot of fake, iceberg and darkpool orders. You could use the option market, as you said. Make sure to select all the expirations.