Wins the internets!!Sig Sauer P210
SW1911 Pro Series
Springfield Range Officer
Glock 34
M&P Pro Series
Walther PPQ 5"
Sig P226
Do you have a favorite home defense or carry gun? I would want to use that for plinking to stay practiced. If not, I'd save money and buy what I really want for HD/carry and use that for plinking.
EAA Witness Elite Match, WAY more accurate than I am, tuned and Production Class legal (and competitive) out of the box, many reviews say it outshoots Kimbers of twice the price. I When I got mine it was just a shade above $500 and the fit and finish are great. Little big for carry, but definitely my go-to gun for plinking and punching paper. One of my "never sell/trade this one" guns.
What's your budget? If it's less than $650 or so then you can't go wrong with a used p226. Or a used PPQ
For just a plinker I'd look into a cheaper budget. Off the top of my head I'd suggest EAA Tangfolio Witness $275, EAA SAR B6P $275, S&W 5906 or similar.