Read.
Also have a look at their manifestos. Attend hustings. Ask them questions. Take advantage of any opportunity of direct communication with candidates and parties.
The media has so much influence, interests and their own agendas, it would be unwise to form views based on their portrayal and selection of “news”.
I have great respect for a couple of candidates here in Clwyd South, but some don’t even answer questions about policies that affect my family. One doesn’t live in the area and I know almost nothing about another as she doesn’t appear to meet with or speak to the public. They want to represent you and I, so it’s worth engaging directly with these people.