Usually, a cheap (indoor) antenna won’t get you what you need and an expensive antenna is just overpriced.
Did you say you tried to tune in channels on your TV with the antenna connected directly to your TV? If you’re not able to pull in any channels on your TabloTV or TV then you may need a better antenna.
This post has what I think may be a good, omnidirectional antenna for outdoors or in your attic. It was recently installed by another member and their results seemed good.
I installed a similar antenna to this one for my sister-in-law and it seems to work fine. She’s only 15 or so miles from the towers. I didn’t use the amplifier that it came with and you probably won’t need it if the antenna is any good.