You are kindly trying to give advice to the OP but I'm not sure if the OP is hanging on anymore.
"....the latest inexpensive/cheap TPA/TDA amps...". Most TPA/TDAs are not "chip amps" as defined here on the forum, they are class D designs.
"Latest" has to be understood how? The most recent chip design?
"Inexpensive"? Chris is right, what is the budget?
A cheap and pretty well sounding chip-amp is the LM1876. It can be found on boards originating from CN for 10-15$. The sound is close to the (genuine) LM1875.