Silly thought but have you asked your own bank(s) about this? An international transfer of funds should be possible without any extra service in the middle but the downside is most likely the costs that they will charge you for the service. Something like WISE may be cheaper, but usual caveats apply.
I just did a quick search and I see that TransferWise (later WISE) is mentioned as reliable as far back as 2015:
Advice on how to send money home
Perhaps it is useful to search for TransferWise on these forums... you may find out more and may be able to PM some people with experience.