Help with fillet edge selection

Does anyone have any tips for generating fillets on a parts with many, many fillets? Picture provided isn't a real part but an example of the types of operations that are causing issues. Lots of small features on parts that require clicking on many edges. Clicking on all of these edges makes the fillet tool laggy, and you also have to deal with edges being lost when the part updates. I feel like there has to be a better way, but I just don't know what it is. Is auto fillet the way to go? Functional part design?