Best for Overall Ease of Use: E*TRADE E*TRADE is the total package for bond traders. You’ll find over 50,000 different bonds or bond-like securities, including Treasuries and Agency bonds, municipal bonds, corporate bonds and high-yield junk bonds. Treasuries are commission-free at both auction and on the secondary market, while other new offerings have a commission when sold only. Other secondary market bond trades are $1 per bond ($10 min, $250 max). E*TRADE also has multiple platforms for clients, including two different mobile apps. Power E*TRADE lives up to its name with an endless sup...