Open both the AMEX Business Gold Card and Business Checking right now and you can earn a 90,000 + 30,000 welcome bonus. If you open both, you can also get an extra 10,000. So if you are approved for both successfully, that is a total 130,000-point welcome bonus.
This looks like a public offer. If you want to get it, I recommend applying for the two accounts separately through the promotional link below.