What is the highest return I can get per year on my investments (Only things I don't need to touch like bonds)

Answer 1

There is only one answer;
The more "return" on an investment, the higher the risk.

ALSO: Learn this stuff. Read some books. Asking strangers, whose qualifications and motives can't be known, can be financial suicide.

Answer 2

Remember the investing basics: the higher the return the higher the risk. You mention bonds, you can get corporate junk bonds that yield over 20%. Vanguard's U.S. Treasuries bond fund yields 4.03%. You can guess which is the riskier investment. Always invest within you risk comfort zone. It is your money.

Answer 3

There is no limit on how much return you can get on your investments.

There is no limit on how much money you can lose with your investments either.