It depends. If I bought a European car, I would use OEM spec'd filters, such as Purflux, Mahle, Mann Hummel, Hengst, or UFI. Whichever one makes the OEM filter. Motor oil would depend upon the OEM spec. M1 Euro 0W-40 FS would be my first choice, if it met the spec. Motul 8100 would be my alternate, if needed to meet a spec. The OCI would depend upon the total oil capacity of the engine. Euro cars tend to hold a lot of oil, so I'd probably stay with 10k mile OCI, unless the manufacturers service interval was less, in which case I would follow that, until the warranty period was over. I've had excellent success with this so far, and see no reason to deviate from it.
If I bought Asian or American, I would use either M1 ESP 0w30 or M1 Euro 0W-40 FS. Filters would be a Carquest Select, but I would have to consider this info, before deciding which one for sure.
Since Asian and American cars tend to have a smaller total oil capacity than Euro cars, I would probably use a 6000 - 7500 mile OCI.