I'm considering an electric tankless water heater on a small cabin
serviced by a private well.

There's a shower, a bathroom sink, a kitchen sink, a utility sink and a
washing machine. Occupants: 1-2 unless the relatives figure out where the
retreat is located.

What brands are to be considered? To be avoided?

I'm getting rid of the propane tank. Present water heater is a 40-gal
Rheem electric on its way out.

Thanks.