I use water based lubes. KY Ultra Gel is a good lube for fucking,masturbating, or anal. You can thin it down with just a couple drops of water( feels like real pussy juice/precum) I've been using Calexotics ultra thick anal lube and it works very well, apply it with one of those hypo injectors.Commercial lubes are fairly expensive, some are just redic(dick)ulous. I made some using cornstarch from online recipes. A couple tablespoons makes a lot of lube, I made a small batch and used it for penis play. It was a little too thick but you can thin it by adding a little water. I didn't save any but I am just about out of my commercial lube and will make some more. Coconut oil makes an excellent lube too.
Coconut oil is the best but you shouldn't use with condoms.....can break them. Only thing is if you live in a cool climate had to be warmed to stop it setting Simon
I find Lynk water based lube very good. It's advertised as an anal lube and has worked very well for me.
The personal lubricants produced by some well-known brands are very convenient, environmentally friendly and harmless.