You might still be able to find Castrol Edge 0w30 at Pep Boys, if your local store hasn't converted to service only. It's A3/B4
Liqui-Moly makes at least two A5/B5 0w30 oils:
Special Tec V (part #20202 for the 1L, #20204 for the 5L)
Longtime Plus (part #1150 for the 1L, #1151 for the 5L)
Napa carries Liqui-Moly or can get it easily. If shopping Napa, put "LM" in front of the part number. For example, LM20204