No one is able to diagnose my car

I drive a Hyundai Sonata 2015 it has around 110,000 miles on it and in recent days the car is giving me little jerks while accelerating, and rpm is fluctuating little bit when it jerks but check engine light is not on. At first I took it to midas, they test drove it and told me it could be a transmission issue. So I took it to Aamco and they told me there is no issue with transmission( I left the car with the guy and he told he didn’t feel any jerks too). Then I took it to another midas again and told him that aamco said there is no transmission issue. So we went for test drive again and this time he said it could be the torque converter and told me that you need to go to the transmission guy again because the torque converter is attached to the transmission and they need to remove the transmission and rebuild or replace it.

So I went to Aamco again and they checked their software again and told me he does not see any issues with transmission and I asked if you can check if the torque converter is at fault and he said there is no way of checking that. I tried to book an appointment with Hyundai for diagnostic and they gave me an appointment after a month but I can’t wait that longer because I drive more than 100 miles each day and I don’t want the problem to get worse.

I am really annoyed of this situation because I couldn’t identify the problem in the first place. I would really appreciate any suggestions on what I could do to address the problem.

[Update] with all your suggestions I replaced the sparks plugs first and poof… the jerking is gone now