Water-based lubes are a safe and versatile option. Universally compatible with all toys and condoms, water-based lubes go with everything!
These tend to feel wet and slippery, fairly closely matching natural vaginal lubrication. Consistencies range from thin and watery all the way up to thick gels. Thicker lubes tend to provide more 'cushioning' and can stick better to toys for that type of play.
Water-based lubes offer very easy cleanup, but the downside is that water evaporates and gets absorbed by our bodies, so they tend to dry out faster. Most are easy to reactivate by either applying a bit more fresh lube, with saliva, or water.