Forget about magic schemes and promises of a high pension without any effort - they simply don't exist. A high pension won't fall from the sky if you've worked on minimum wage your whole life or took sick leave frequently. It's not a lottery where someone gets lucky, but rather a matter of cause and effect: your pension is calculated based on your actual income and work history.
The conditions that affect the amount are pretty straightforward. You need to have work experience (ideally a complete career without long gaps), work at an official job so your employer pays into the system, and earn a decent salary - the higher your wages, the higher your pension. The retirement date also matters: those who worked under the Soviet system often get more thanks to recalculation. This applies to everyone, but it's realistically achievable mainly for those who can afford a full career at a stable job with decent pay.
For an average person, this means: get a job at a company that pays taxes legitimately, don't jump between jobs without reason, try not to take long unpaid breaks that would interrupt your work history, and if you can - upgrade your skills for better wages. Not magical, but real and proven to work.