I suppose you're targeting trout.
The one time I fished Kezar, I parked on the east end of the lake at a dirt lot. Fits more than a few vehicles.
The one time I ice-fished Laurel Lake, I took advantage of roadside parking on the east side of the lake, near the boat ramp. Limited space, get there early.
When I fished Little Sunapee, I used the public access by the west end of the west basin. Little Sunapee Rd. That is an outflow of the lake, so the rocky shallows, combined with current, can weaken the ice there.
The state provides bathymetry maps, together with access points, restrictions, and known fish species. This is readily available info you may wish to avail yourself of. Also, satellite maps are your friend.