Best SOT Kayak seat

I have a Ocean Kayak Scrambler XT Angler. I am not very happy with the back support in the seat. Can anyone suggest a seat that will fit with good back support or a way to beef up my current seat. Hopefully not too expensive. Thanks

Crazy Creek - air

Ocean Kayak yellow backband
and yakpad gel seat. The backband can snug up and support pretty good. I bought the expensive all in one and it doesn’t fit me right - grey foam by ocean kayak - fits my kids though.

Back Band And Seat Separate
If the back is attached to the seat you can not adjust it while sitting on the seat part

I use just a back band, and glue a separate seat directly onto the boat

I like this back band and seat combo
For the back band:

For the seat this:

or this: