[Tania80]

I live in Spain, where a prescription is required for androgen blockers, such as Aldactone or cyproterone acetate.

I've seen websites that sell these medications without a prescription, but at very high prices or with questionable reliability.

I'd like to know if there are more reliable ways to obtain these medications at more reasonable prices, and if possible, online within the EU.

[Heaven's Night]

Look for HRT cafe. Go to Reddit, r/estrogel or r/diyhrt and ask around.

I'll dm you in a moment.

[Shirazmn]

Online within the EU, I don't know.
I think HRT is sold over the counter in Turkey (not 100% sure) so it may be convenient going there on holiday this Summer...
I used inhousepharmacy and so far they always delivered, but they ship from Vanuatu (definitely not EU) so your country may have some custom charges for that. Also, they only accept payments via bank transfer and American Express.

Good luck