>>26600954Gelbooru lets you use more than two search terms without paying any money (also, make an account and you can disable one of three ad types, meaning you can destroy the transmission ads and just block the rest), it typically has a cleaner layout, and it allows you to add or subtract recommended search terms just from the left column, as opposed to having to type them.
Sometimes, I have some fun by removing or adding search terms one at a time with those add and subtract buttons, and keep doing it until I've narrowed it down to 10 pages or less, just to see what sort of search term combinations I can make, and to try to find stuff I've never seen before.
Also, Gelbooru often seems to be more up-to-date since they traditionally just copied all of Danbooru's uploads on top of having their own.
There is a handful of stuff on Danbooru that isn't on Gelbooru but the opposite is also true but in greater numbers.
There's some stuff you'll only find on Sankaku Complex (and Pixiv) but that website isn't as nice overall (though the infinity scrolling is nice, but I just use Autopagerize anyway).