Boost AT&T LTE from 2 bars to 4 bars?

Does anyone know of any good tips or antennas to boost AT&T LTE signal in my house? I get 2 bars inside and 4 bars in my driveway.

Should I buy an antenna on Amazon?

Any tips or recommendations would be appreciated.

Looks like AT&T has discontinued the micocells, they recommend using WiFi calling. If you get one from Amazon make sure you can return it if it turns out to be crap sold by a third party like so much stuff on the site.

will do.

Do you know if any of the antennas for LTE are worth it?

I have no idea why AT&T discontinued their microcell product. I was desperate for a stronger signal so I tried one of the antenna boosters a couple years ago. I think I paid $120 for it from Amazon. It had a flashing light that stops flashing when it’s lined up with the tower. I tried all day to get it to work but it never did even though I knew where the tower was located. I think my neighbors thought I was looking for aliens. Anyway, I was able to return it for a full refund. Fortunately AT&T put up a new tower a couple miles from me so it solved my problem.

It’s worth a try, but check the return policy before buying.

Thank you for the context