Freeware - Venomode Mesa Lite VST Plugin

https://venomode.com/mesa-lite

Mesa Lite is a free soft clipper for controlling peaks and increasing loudness without pumping. Mesa Lite is a free soft clipper designed to increase loudness and control peaks. Soft clipping allows you to gently smooth peaks, creating extra headroom for your mix or master without pumping artefacts like with a limiter. Clipping is used not only to control peaks, but can add saturation for a warmer, more glued-together sound.