DC offset before signal being fed into an instrumentation amplifier from a bio potential source
NP0 ceramic capacitors are okay, however larger values tend to be a bit large and expensive. Film capacitors are good, but SMT versions are not so great. Tantalums are not a noise problem but are leaky (and polarized), which might be an issue in your application.
X7R and similar class 2 capacitors should probably be avoided- they can exhibit mV level noise. Here are some informal tests where they whacked them hard and got ~100mV with what looks like mechanical resonances in the several mV range.
I would suggest leaded film capacitors or NP0 ceramic. Don't forget that you need to provide a DC path for your amplifier input bias current so you'll need large-valued resistors to ground (or some other reference voltage).