Need help understanding few things

After reading a lot of info here on BHW, I remember I have several domains and some of them are almost 20 years old, I did a quick test on some of them using s free tool @websiteseochecker dot com, and got those info as shown in the below picture.
Going for that which one would be the best to start to invest on it to do some way of monetization ?
I'm still learning stuff especially here (Thanks to everyone) and would like the opinion of the Masters here, on best options to monetize on those domains and which ones would be the best !
Cheers