Hi klphoto7,
Dreamfoam sells the Freedom customizable latex mattress here which also uses synthetic latex made by Mountaintop foam and one of the layering combinations may feel similar to you compared to the feel and firmness of the Myrbacka but the only way to really know how two mattresses that have different designs would compare for you would be based on your own personal testing or experience.
There are also links to some of the lower budget online latex and latex hybrid options I’m aware of in posts #3 and #4 here (including some latex/polyfoam hybrids) but once again they all have different designs and/or use different types and blends of latex and while some may feel similar to you (depending on the mattress or the options you choose for the ones that have customizable layers) … if a mattress has a different design that uses different types or blends of latex or different thickness or firmness levels of latex or other materials or components that are different (including a different cover and quilting) then the only way for you to really know how they would compare to another mattress would be based on your own personal testing or experience. Some of them may be a better “match” for you than the Myrbacka in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) and some of them may be less suitable for you.
The Tuft & Needle certainly uses high quality materials in its budget range but it would also be very different from a latex hybrid mattress.
Phoenix