1. Arming Ukraine with every weapon that they could functionally deploy short of nuclear weapons, and put zero restrictions on their usage as long as they are firing at military targets.
2. End all entry to the US or EU from Russian nationals, except diplomats and staff to the UN.
3. Close all Russian embassies in the US and the EU except for one in Washington D.C and Brussels, and limit them to bare minimum staff.
4. Sanction all Russian fossil fuel products, and secondary sanction any shipping company transporting, and any company selling those products.
Putin only understands force, he's not going to just "quit" as there are no domestic repercussions for him to continue to send men and materials to be destroyed in Ukraine.
These things should have been done back in 2014. Obama/Merkel/Sarkozy dropped the ball, and that's how we got the 2022 escalation.