Hi mattressseeker,
There are too many unknowns, variables, and personal preferences involved for anyone to tell you which mattress may be best for you out of all of the many thousands of mattresses that are available in the market based on “theory at a distance”. Nobody else can feel what you feel on a mattress and a mattress that is “perfect” for one person may be completely unsuitable for someone else to sleep on and what is “too firm” for one person may be “too soft” for the next (see mattress firmness/comfort levels in post #2 here).
It would be similar to someone asking what type of clothes would be “best” to wear and all the answers you would get would only be each person’s personal preferences that may have little relevance to you.
Having said that … the tutorial post includes links to several lists of some of the better online choices I’m aware of that all compete well with the best in the industry (it’s in the "optional online step) and if you let me know your city or zip code I’d also be happy to let you know of any of the better options or possibilities I’m aware of in your area as well.
Phoenix