For SNES I'd use Mednafen with the snes_faust core; and for difficult games to emulate I'd use the snes core. Also Mednafen works for MD/NES/GB/GBA/NGP and tons more systems.

PCSX-PGXP runs really well too, forget PGXP on that machine but at low resolution games will run fine with a simple bilinear filter. Parasiteve Eve can be damn addictive ;)

Also, text adventure games; a good one with a great history such Tristam Island it's fine too.

Also, compile Scummvm with these options from git (pacman -S scummvm, check the dependencies; run pacman -R scummvm later), then compile it with these options:

    #!/bin/sh
    export CC="clang"
    export CXX="clang++"
    export CXXFLAGS="-fpermissive -fcommon"
    export LDFLAGS="-Wl,-z,muldefs"
    export LANG=C
    make clean -j4
    env CC="clang" CXX="clang++" sh configure \
    --enable-static \
   --enable-all-engines \
    --enable-all-unstable-engines \
    --enable-release \
    --enable-plugins \
    --disable-hq-scalers \
   --disable-dlc \
   --disable-scummvmdlc \
    --disable-discord
     make CC="ccache clang" CXX="ccache clang++"   LDFLAGS+="-Wl,-z,muldefs"