Manticore is seldom mentioned around here but it seems to be a really good alternative [1]. The fact that is the search engine Craigslist uses gives them a lot of credibility.

This may be a bit silly, but I wonder if the design of their blog and website makes them look a bit "old fashioned" or something.

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1: https://manticoresearch.com/blog/manticore-alternative-to-el...