As @yeti42 said, try the Sumiko Setup. These are the instructions I use: https://www.audioaficionado.org/showthread.php?p=979168
You're not going to get it on the 1st, 2nd or 3rd try but don't get discouraged. I have the patience of Mike Tyson losing a boxing match and I was able to stick it out and get it mostly right. You'll try it and not really hear much difference the first few times. Then you'll have an "ah ha" moment. After listening for awhile longer you'll realize it was just an "ah" moment but now you know something is different. A few more tries and you'll get it. Best bass doesn't mean loudest, it means sound pressure; you can feel the difference. At the end the speakers may not be the same distance from the front wall or even the exact same toe in. Some people can't stand this and just give up. That's ok. It's not for everyone. At least you'll get a taste of what you should be looking for regardless of your setup method. My local dealer uses this on all his demos. He doesn't even put marks on the floor. He sets the speakers new up every time. Once you get good, it takes about 15 minutes to get most of the way there.