There are three ways to do it

1) post and patiently wait for your points to rise. You may skew or bend your opinions to maximize gains or post honestly from the heart/mind

2) gather a group of freinds and upvote eachothers posts. I find there are many lurkers here that seem to attempt to control narrative by doenvoting without posting responses.

3) create a few bot accounts abd write a script that upvotes withthese accounts on every post. This is probably the most reliable way and I would guess how crap/duplicate articles consistently reach the front page.