E*TRADE is a great option if you want a free to use, feature-rich IRA platform well suited for both new and experienced investors. There are many commission-free ETFs and frequent promotions. Available on both desktop and mobile.
Consider Tradestation if you want a sophisticated trading platform for advanced investors who value screening & data, and want to trade widely.
E*TRADE
Self-Directed
Tradestation
Self-Directed