You could try using VPNs etc like the posters above suggested op, but a better solution would be to use alternate exchanges(Fiat or Crypto) that are permitted in your country.
Trust me, there is no alternative to Betfair. This is not just another bookie. Betfair's betting exchange has no competitors.
I disagree. Did you forget exchanges like Smarkets, Matchbook etc? Their liquidity is pretty high too when compared to Betfair though I do know that Betfair is the exchange leader and that won't change anytime soon.