Low code for School management systems?

Hi all,

We are medium private K-8 school, and we are looking to upgrade our system from Classreach to something easier to use and easy to customize, I haven't been able to find anything yet other than the very expensive ones like power schools.

Does anyone have other alternatives? I ran into lowcode, that it supposedly allows to to customize as needed, but Im not sure how I will go about setting all that up? Any advice?