I tried out wandb and mlflow so far. Both are pretty amazing. When it comes to logging plots, wandb is the clear winner. You can directly log matplotlib plotly plots and in the UI it is easy to navigate between instances of a plot at certain epochs. With mlflow on the other hand it seems you need to save the plot say as png and log it as a generic artifact.
mlflow is self hosted out of the box, I really like this. wandb self hosting seems possible.