Great topic. I too am using Widget-Manager and Dashboard-Links from Nicola at Tattoocms (sadly, he is not as active in the community as he one was), As well as about ClientSettings and a modified version of his SEO4Evo.
TemplateEdit3 is one of the best things to happen to Evo, A great wysiwyg utility to change how the fields are displayed in page layouts.
I am also using a version PackageManager, which is loaded with the Evo instalation, so I can easily load other custom extras.
I was just enlightened by ""fourroses666"" about ClientSettings, so this to will probably fall into default installation.
MultiTV is another that is used quite frequently, but I am starting to learn MultiFields (docs: https://translate.google.com/translate?sl=auto&tl=en&u=https://64j.gitbook.io/multifields-2/), which may take its place.
FormLister I am not yet using, but its on my list to learn.
I would love to eventually see some templates from others using ClientSettings, MultiFields, TemplateEdit3, etc.