Need baby bath rec

So I have a very active 13 week old. I tossed my baby bath from my daughter cause the foam got gross but it worked and we used it a long time even when she could sit up. Anyways I got a baby bath from my sister and my LO is like thrusting his butt over the little ledge and will slide down. Of course he’s so big that his legs hold him up and the ledge keeps his back up but he can’t like enjoy his bath and kick/move. I’m looking for recs for baby baths that allow baby to move and have fun safely. I also like to bathe my 3 year old with baby.