Free indexers

Hi, I'm new to the world of usenet. I am on a 3 days trial period on nzbgeek which is very good but the trial is very limited (3 days, 15 nzb) I found out about nzbscout (really bad, only popular stuff) and wanted to know if there are some free indexers which are worth it. There's a reddit post with the following recommendations:

NZBindex - no limits, just a general search not the easiest to find things

Binsearch - no limits, just a general search not the easiest to find things

Nzbking - no limits but very hard to navigate and find what you want but they have very old stuff that nobody else does- my go to when others do not have content

Nzbfinder - limit of 5 per day for free I think, but they are solid.

Aznzb -25 per day limit for free ..not a very good database in my opinion though

Drunkenslug - limit of 5 per day.

I've tried Nzbfinder and they do are solid. Do you have any other suggestions? Thanks!