Independent redistricting commissions, banning political Gerrymandering/requiring competitive districts, publicly financed political campaigns, and rank choice voting would all have positive impacts on who gets selected and the ability of a constituency to replace them when they don't vote in their interest.
Define "independent".
I note that California has an "Independent redistricting commission" and it gerrymandered the state more than the previous "by legislature" system. (Exactly how do you determine "independent" in a way that isn't easily gamed?)
Of course, there's also the "define gerrymander" question.
The typical answer is some variation on "minimize the perimeter of districts." That's measurable but why is it good? For example, it doesn't follow interest group lines