Credit Cards with regular 0% interest balance transfer offers

SirLouie went on a bit of a rant said
2

So just about every credit card offers an introductory balance transfer offer, where you transfer a balance to the new card for a fee of anywhere from 0% - 5%, and then you pay 0% interest for a period between about 12 to 18 months, after which the interest rate on any remaining balance shoots up to somewhere between 11% and infinity% for the remainder of the outstanding balance.

I have several existing credit cards that I've had for years that regularly offer similar balance transfers in the form of online transactions or paper checks. For example, my existing Citi Simplicity card offers me 0% interest for about 11 months for a 3% transfer fee. My existing standard Discover card offers me 0% interest for 12 months for a 5% transfer fee, or 9.99% interest for 24 months for a 0% transfer fee. This 9.99% interest offer does not interest me (no pun intended).

I have an old American Express with no balance on it that I rarely use, but they do not offer favorable balance transfers for existing cardholders for as long as I've been with them. I've considered closing this card and getting a different AmEx card, but apparently AmEx only offers cards with intro balance transfer offers and not regular offers for existing users (as far as I could discover, again no pun intended).

TL;DR - Thus I ask you, the Meh community: Are you aware of any credit cards that regularly offer 0% balance transfer periods (with any transfer fee percentage)?