i really need an good fm antenna for my yamaha tuner. im so confused. i cant have those long dipole antennas on the wall and i cant have it outside.
It's not rocket surgery. What do you want to listen to? With an indoor antenna, you are pretty much limited to stations with moderate-to-strong signals, meaning within 25 miles or so.
How many different stations do you want to listen to, and where are they? If all the stations you want to listen to are in the same general direction, a twin lead dipole in an inconspicuous place - on the floor, behind a piece of furniture - may work. Even a random length of wire connected to your tuner, with a little trial and error positioning, may surprise you. These are cheap and easy options if you are willing to tinker with positioning them.
If you want to listen to stations in multiple directions, you usually need a directional antenna. Rabbit ears, as mentioned above, can be a very good solution They are basically a rotatable dipole.
And don't get hung up on feedline impedance and baluns. In my experience, the antenna itself and where it's positioned has a bigger effect than whether your feedline matches.
Indoor antennas are hit and miss. A hunk of wire may work better than an expensive amplified antenna, depending on your location and where your target stations are. You need to engage in a little trial and error.
Or, you may just be in an unfortunate location where you absolutely need an outdoor sky hook, but probably not.