Telegram Marketing

I would like someone with experience on marketing on Telegram to help to promote a telegram groupI have developed for Sports betting.
This group is backed by a bot that delivers automated content that guide users to profit from differences in bookmaker prices. The service integrates millons of data points per week to deliver valuable opportunities.
I need someone who understands what can be done without getting banned by spamming people - what paid or other options do telegram have for legitimate marketing.
I need someone to help with marketing strategy, creative content (if applicable). I am also keen to look at other marketing channels.
I am based in Sydney and the marketing focus would be Australia and New Zealand to start with but would be expanded if successful to include Europe and USA.

Thanks in advance