Toddler sleep struggles

So anyone else’s kid fighting sleep lately? My son is down to one nap a day, usually about an hour, and then at bed time he rolls in his crib and kicks the walls for at LEAST half an hour before finally drifting off. I’m hesitant to push his bed time LATER because my husband and I both work and need to wake him up at 6-6:30am on weekdays to get to day care in time. I don’t want him losing out on the crucial sleep he needs at this age. We currently put him to bed between 7:30 and 8. He is also fighting off his naps a little more lately. And I don’t feel like he’s napping long enough. Sometimes he will fall asleep in the car at like 5:00 when we’re taking him home. He does still sleep though the night which is soooo appreciated but I feel bad that falling asleep is becoming Such a struggle. We try to have nice wind down time before bed and limit sugar in the evenings, Any tips?