You want a 'logic level n-channel mosfet'. They're not expensive.
One of many example would be an IRLZ44N.
Except for the obvious voltage/current capabilities, you need to watch out for the R-DS(on) value at a gate-voltate of 5V (see the datasheets). The value should be well below 0.050 Ohm.
You will find tutorials for how to wire these thing up correctly.