Which version is best to install on 15-inch Macbook Pro Retina late 2013 ?

I’m looking to breathe some life into my 15-inch Macbook Pro Retina late 2013, and have recently learned about OCLP.

I’ve watched a handful of instructional YouTube videos to get a feel of the process. But I’d love to get some recommendations from the experienced folks here on which MacOS I should update to.

Any feedback appreciated!

Specs

- 2.0GHz Quad-core Intel Core i7, Turbo Boost up to 3.2GHz

- 8 GB 1600MHz DDR3L SDRAM

- 256GB SSD