So there's no denying that sometimes picking out palletes for a project can be difficult and color theory is no easy beast to fight but I happened to find this tool sometime ago and though i might share
It's thanks to a post on twitter that I saw this but the site is called colorsuplyyy and the way it works is that you can select a color on the wheel by dragging the selector. it gives a pretty decent variety as you tab through options using the arrow from basic complimentary to Analogous to triads and so on.
https://colorsupplyyy.com/app/
It's not the most extensive but pretty solid i think to at least get the ball rolling when you're stuck. hope it helps and happy coloring