Being the only playable Lynx emulator, you are going to naturally be stuck with Handy =-). Handy is a decent, albeit slow, Lynx emulator. Source code is available for future development and porting.

MetaLynx was the first Lynx emulator, but currently still does not play many games. Emulation is significantly faster than Handy since MetaLynx uses an ASM core, however, what good is faster emulation when compatibility is at zero?