My son loves the Baby Einstein Take-a-Long Tunes: https://www.amazon.com/Baby-Einstein-Along-Tunes-Musical/dp/B000YDDF6O/ref=mp_s_a_1_2?crid=23Y6OCOBGZ7ZR&keywords=take%2Balong%2Btunes&qid=1684172698&sprefix=take%2Balong%2Bt%2Caps%2C89&sr=8-2&th=1&psc=1
This is a consistent favorite, and the busy board part detaches so you can use it while laying in a hospital bed: https://www.amazon.com/gp/aw/d/B07CRSXMW8/ref=yo_ii_img?ie=UTF8&psc=1
This is also a current favorite: https://www.amazon.com/gp/aw/d/B09YRCYGPT?psc=1&ref=ppx_pop_mob_b_asin_title
Here are a few of the things we have (he still likes them too!) from Amazon:
Baby Einstein Take Along Tunes... https://www.amazon.com/dp/B000YDDF6O?ref=ppx_pop_mob_ap_share (I actually had another iteration of this toy for my eldest, and my middle used it too- my eldest saved it as a keepsake lol)
Bright Starts Snuggle Teethe... https://www.amazon.com/dp/B07QVLTZ5N?ref=ppx_pop_mob_ap_share (not a light up, but good for teething)
VX-star Baby Travel Play Arch... https://www.amazon.com/dp/B01LXH8F63?ref=ppx_pop_mob_ap_share (the arch itself was on the shorter side and didn’t work for what I wanted, but he likes the toys on it and still plays with them)
Fisher-Price Rainforest Jumperoo https://www.amazon.com/dp/B000LXQVA4?ref=ppx_pop_mob_ap_share (I had this same one for my middle child, but as they are over a decade apart I had to buy it again)
Fisher-Price Deluxe Kick & Play... https://www.amazon.com/dp/B0793D9WBY?ref=ppx_pop_mob_ap_share (this was a life saver and he still plays with the piano and the toys!)
Fisher-Price Hug & Play Tummy Wedge https://www.amazon.com/dp/B07DK6R19S?ref=ppx_pop_mob_ap_share (this he has only liked recently, hated it for tummy time - also no music)
TILLYOU 2 PCS Soft Baby Rattle... https://www.amazon.com/dp/B08H2881MR?ref=ppx_pop_mob_ap_share (again no light up, but fun to make noise with)
Bstaofy Creative Musical Glow... https://www.amazon.com/dp/B07SL813CT?ref=ppx_pop_mob_ap_share (he likes the lights and those will play until you turn it off, I wish the music button played more than one song - but he also like this)
We have also picked various things up at stores too, a lot of times the cheaper things tend to entertain longer lol!
Edit to add that I rotate these out so that he doesn’t get bored of anything:)