Hand jobs only you might want to consider "vegetable oil" specifically grapeseed oil - which you can buy in any supermarket.
Grapeseed oil is not small, unlike other vegetable oils, and it is the typical base for "massage oils." You only need a tiny bit of it, and I find it does a good job. Decant it into a nice-looking hand pump bottle.
As a masseuse, I use grapeseed oil but buy it in vast quantities for my business.
Like this:
https://www.salon-services.com/beauty/skincare-and-spa/aromatherapy-and-spa/aromatherapy-and-massage-oils/strictly-professional-grapeseed-oil-500ml/120339.html
I think you can buy it in Holland and Barrett too, it's the same as the supermarket cooking oil, just lots of different types of packaging.