@Angel *******
your options are limited by your age and the fact there are 2 of you (I assume you are not married as you say partner).
You could both get elite visas but they are expensive
You could both get jobs but you need experience and skills
You could both sign up to learn thai with an approved school
You could both get multiple entry tourist visas which can give you up to 9 months in Thailand but are only available from your home countries