I'm having a hard time deciding on the best research strategy to analyse interview data. I'm conducting 20 face to face, one on one, open ended semi structured interviews (gauging public opinion). And I'll be honest, I'm used to quantitative methods, and of course I need to decide on the best method for analysing my data. I'm struggling. I thought grounded theory...then thematic analysis. I just can't decide which is right. Anyone undertaken similar research and can offer advice?

Thanks.