Nobody can guarantee a best place to put Google AdSense in your post, The traffic and article content are much more important.
Our Google AdSense normally put the left top in a single post. However, today we read Google AdSense performance report and found “OPTIMIZATION TIPS Best practices for ad placement”, the good layout and bad layout.
Place your ads close to the content that your users are interested in, also make sure that users can easily find the content they are looking for.
So let us try the good layout, put Google AdSense to the 1st or 2nd paragraph.
We can easily search out different solutions, if you don’t care using plugins, you might just search plugins, some plugins brings you better and professional features.
Or, modify code DIY. Here we collect 3 links, we did not try all of them, you just try yourself and select a best one which you like: