Help with filter!

Hello!!

I'm about to buy my first filters but I actually dont know which ones are "the must have" for my needs/lenses.

I use mainly a sigma 10-20, a sigma 17-50 an a 35mm

Im buying these filters mostly for long exposures/landscapes.

So, any strong recommendations?

Should I pick filters for all these 3 lenses or focus on the lens I will be using more? If so, which lens would you guys suggest I should prioritize?