What ticket seller should I use to purchase One Direction tickets at Soldier Field, Chicago?

It’s been over a decade since I’ve purchased tickets for a large arena show. We didn’t have as many choices the last time I purchased tickets.

I looked at Ticket Master and the seats are already very limited for the Aug. 29 & 30 shows. I can’t even find two seats together without paying an arm and a leg. I noticed that Vivid Seats has many seats left and they are more affordable. Is this a reliable site? Any others I should look at?