How to determine best-fit search engine with AEM 6.3

Hi All,

In one of AEM-SOLR integrations that I have seen, wherein full text search along with property based search is being done. Basically at a very high level, via querybuilder we are getting list of all the page in the system. Based on certain criteria, certain pages are excluced and all of that data is put into SolrInputDocument and that is added to SolrClient[cloud based or whatever].

My query is, whatever is the external search engine used, basically we will always be doing something similar.

1] Get the required data from AEM.

2] Pass it onto the external search engine.

So, if there is any evaluation to be done to decide on the external search engine to be used, what is it on AEM end that needs to be considered.

Any thoughts on this will be helpful.