Marcus is offering 1% bonus interest for 3 months when you use my referral link above. This gives 5.1% interest for 3 months. On top of this, you can get an extra 0.1% interest for the next 24 months by linking your Marcus account with your AARP number. Please note that AARP does not have an age restriction, so anyone can sign-up for the additional 0.1% bonus. Unfortunately I called Marcus and the 0.1% bonus AARP promotion is not longer offered.
There is a 150k bonus point offer for $8,000 spend in the first 6 months on the Amex platinum Card.
You most open the link in INCOGNITO mode to see the 150k offer.
You can use this referral to get 75k bonus points after $4,000 of spend in the first 3 months. Keep in mind additional authorized users are eligible for a full priority pass and are free of charge making this one of the best cards for those that travel regularly.