There are some ways to earn money without paicing bets and I would like to talk about some of them.
First and the main one is the affiliate/referal programas, this way by sharing your affiliate link you will get some incom from the users bets, isn't easy to get good affiliate (users who bet a lot) but with one high roller you could make a descent amount.
The second one is the VIP programas, like the one that stake offers, you need to bet to grow your account, but once you have a good VIP level you will get a weekly and monthly prizes, It will be better if you bet that month but even without betting you will get something each week/month.
I don't see any way to earn money from gambling platforms without betting. Here you are talking about earning from referrals and affiliates, but I think it is not about earning money by gambling, but it sounds like advertising or marketing, but there is no guarantee of the money that can be earned from referrals and affiliates because to earn money from referrals you have to face different rules where if you break a rule or regulation, you will not get any money from it.
To get a VIP rank on a casino platform, you must gamble there and be a big gambler, only then can you get a VIP rank. As far as I know, getting a VIP rank is not easy, so it is not very reasonable to think of earning money by thinking that VIP rank is easy.