Overwhelmed by lens choices. Advice very much appreciates.

I've been trying to make my way through the 40 lenses listed as compatible with the Olympus OM-D EM-5 on lenshero and it's led to me feeling VERY overwhelmed by choice and falling into analysis paralysis.

Can someone please suggest two lenses for me?

I'm looking for

• A fast prime (between 35-50mm)

• A versatile zoom

I'm purchasing this camera for the intention of travel and it will be my only camera.

I would really prefer lenses with smaller physical dimensions since size is one of the main reasons I'm going for a mirrorless system rather than an SLR.

at the moment, out of the ones I've looked into, the Panasonic Summilux Leica DG 25mm f/1.4 seems to be a good option for the prime lens.