Some of my CS friendly ones include:
Venom Snake/Quiet (MGSV)
Big Boss/Ocelot (MGS)
Batman/Riddler (DC)
Poison Ivy/Harley Quinn (DC)
Flash II/Reverse-Flash (DC)
Pied Piper/Flash III (DC)
Dio/Jonathan (JJBA)
Megatron/Ratchet (Transformers G1 Marvel Comics)
Gwen Stacy/Mary Jane Watson (Marvel)
Deadpool/Cable (Marvel)
Spider-Man/Human Torch (Marvel)
Miku/Rin (Vocaloid)
I have.....a lot of dynamics I love to play with lol