Slow movement while partially submerged can be close, you get resistance to acceleration, but it’s much easier to hold a squat or something.

For running, jumping etc having an Aerial Harness set to take 80% of your weight is similar and lets you trivially do 1 handed pull-ups or crazy aerobatic jumps. Though the harness and wires may add some momentum and feel pressure from the harness. A lesser though more accessible version being a bungee workout, which can even be fun for people with extreme obesity: https://www.youtube.com/watch?v=fIQBBUee_2E

Ultimate is one of those zero gravity aircraft parabolic dives that’s aiming for lunar gravity not zero G. https://www.youtube.com/watch?v=ecOi5gJTMl4

Being underwater with the right weighting is a rough approximation, as used by astronauts for training. Parabolic flight is better, and can be done at 1/6 g too. NASA tested a lunar wheelbarrow that way.