Which platforms are used to make payments?

Question

Payment systems

Hello!
I would like to ask a question to experts in the field of e-commerce.
We offer an online service. It is possible to make a monthly, three-monthly and semi-annual subscription for a set fee.
The users of the service are both residents and non-residents of the Russian Federation.
The question is, with the help of which payment platforms to make online payments both in the ruble equivalent and in the currency of other countries? Which are the most effective and safest?
Is it advisable to connect to several platforms (for ruble transfers and foreign exchange)?
Cash withdrawals will be made in Russian rubles, euros and US dollars.
Thank you for your reply!