I use break free CLP (I think that's what it is) from the back shelf at Walmart. I have used brake cleaner to do some deep cleaning on some used guns I've purchased. That really cleans things up. I did buy a bottle of Hoppe's M Pro 7 back in 2018, but have yet to use it. I think it was good comments on a TA.net thread that drove me to buy a bottle of that.
I went back and looked...it isn't CLP, it is Safariland Break Free Powder Blast.