Maybe feeding them more during feeds, making sure they have no discomfort from gas and using white noise of some sort and making sure they’re very comfortable during naps-like not too hot or too cold. Sometimes putting a heating pad in their bed then removing it before you put them down helps. I also used to roll blankets up and use them like a body pillow for naps so they feel like they’re being held (if they’re a side sleeper)
Around thatbage my first would only contact nap for a while despite being able to nap independently as a newborn.
Girl I be going through the same, I believe it’s a growth spurt. I think after 3 months it gets better with naps
Have you tried contact naps?
Try swaddling him my 5 week old will wake up like that until I swaddle her then she sleeps for hours also I found out I’m not filling her enough with my breast milk so I also have to formula feed so try that as well I top of breast feeding
Unfortunately you can’t really get a baby on a good routine until about 3 months old. But the baby should be sleeping a lot in general at that age. My babies at that age it seemed like the slept more throughout the day than awake lol. Have you tried a baby carrier? Could the baby be gassy? A lot of times at that age they are figuring how to poop and get constipated often. And if you’re breastfeeding sometimes what you’re eating could be making the baby fussy/gassy.