I am also more in line with @ghdprentice but respect those who want more TTs. I think one of your problems is the many small pieces of furniture. If you want to go all in on multiple TTs, have the furniture that helps with it. I would get rid of the credenza and the couple of short vinyl shelves, and have a long support built. possibly 1-2 rows for records below, on top the TTs. You may even consider putting TTs on top of one another on different levels of floor standing shelves, or have some floating wall mounted shelves.
Fewer furniture items will make for a cleaner look and in the end be more space efficient.
If you are somewhat handy, making some support structure out of hardwood is not that difficult. Or maybe your son can help with it?




