Iirc nominal flat in 'clock' positions is bass 10, low mid 2, high mid 1, treble 10. Start there.
Be very aware that your solo tone, aka 'bedroom tone', is nearly always 'best' with more bass and less mids. In a rock band band mix that becomes a woolly lost mess buried by guitar hero 'bedroom tone' with boosted low end that obliterates the toneful bass mids.