recommended 40G or 100G transceivers for connecting 2 cisco catalyst switches (C9500s)

What 40G/100G transceivers (that support MMF) do you recommend for connecting between 2 cisco switches (C9500s).

for 40G MMF, will any of these do?

QSFP-40G-SR-BD

QSFP-40G-BD-RX

QSFP-40G-CSR-S

and for 100G MMF, which one of these is recommended...

QSFP-100G-SR4-S

100GBASE SR4 9 (this uses MPO connector tho, how would you patch this since my patch panels are only LC ports))

QSFP-40/100-SRBD

​

thanks