I am unable to find such t moldings or reducer where it fits my laminate to tile transition
I've had that exact situation, and found that the only type of transition strips that allow for this kind of height difference are ones meant for carpets. They tend to be metal, but wood ones can also be found. Below is an example. You would still need to build up the gap in between a little in order to have some support underneath and have something for the nails to go into.