BZK (Benzalkonium Chloride) wipes is the best option as they are water based, with 0.13% BKZ as the viral disinfectant. It is what hospitals use for disinfecting handwipes.
Problem is.... if you don't have them already.... next to impossible to find right now.
Next best choice would be a Lysol disinfecting wipe or similar, that does NOT use alcohol. Again though.. impossible to find right now for most people.
Barring the two above ideas.... simple soap and water on a cloth and wipe it down, leave it for 5 minutes and then wipe the soap off using a cloth with only water on it. Soap is an effective disinfectant.
What you want to avoid is anything with alcohol as that is very tough on leather.
Debunking Myths: Frequently recommended leather remedies that ruin leather