Alphatrade. Stockcharts have 5min charts also, but I find their refresh system useless and unreliable. Alphatrade is geared to streaming charts and when I used to use them they were quite reliable. Customer service was excellent...that is by phone. I switched back to SC to force myself to stop daytrading. Daytrading did not work for me.
If you need 5-min charts then you will want streaming
quote.com has them very cheap
stockcharts down but they also cutting back on service. If you posts chats on most message boards then now often no longer work. The main reason IMO for subscribing to stockharts is to share charts with others and if they no longer want you to do so -- it is nuts. YOU can instead save static charts then store them on a free server to post...duh. so many free sites support you images but stockcharts whom yo pay will not. Makes no sense