If you use the No$gba debugger version, you may know that it doesn't come with a RAM search utility. But there exist several other external tools that you can hook into an emulator's process that can then search the game's RAM for you. Some of these tools are EmuHaste and EmuCheat.
However, both of them are only compatible with older versions of No$gba, for example EmuCheat only works up to 2.6a (with the emulator config files (.EMU) that I've found), which is before the debug version...
EmuCheat + .EMU file for No$gba 2.8d
However, both of them are only compatible with older versions of No$gba, for example EmuCheat only works up to 2.6a (with the emulator config files (.EMU) that I've found), which is before the debug version...
EmuCheat + .EMU file for No$gba 2.8d