I got some variation of this Amazon generic masticating slow pressed juicer a couple years ago and it's great for pineapple juice. Just slice off the top, most of the skin, and cut it into long spears to go in the machine, even the core. I get about double the yield compared to mashing the chunks against a strainer:

https://www.amazon.com/Masticating-AMZCHEF-Extractor-Professional-Vegetable/dp/B0833NB31H