Could you not have used the car cleaning thread for this?
Anyway, having used a bunch over the years, Gliptone's Cleaner and Protector combo I find to be the best for both price and quality.
The cleaner can also be bought in spray form which is easier to apply, then simply rub down with an MF. The protector is only in cream form.
Smells amazing too.
The products are:
Liquid Leather cleaner (spray form): GT15
Liquid Leather cleaner (cream form): GT12
Liquid Leather protector (cream form only): GT13
They're actually cheap on the official website:
https://www.liquidleather.com