Here in Lisbon now…..

in search of the best octopus. Disappointed so far and the restaurants were well recommended

Where have you had the not-good octopus?
Restaurants recommended here on this forum?

Floresta das Escandinhas - a bit fishy
little wine bar - better but nothing special

Portugal tag added

Ramiro is wonderful and so many of us have recommended it here; I would go there, for starters, but call first to make sure they have octopus on their menu.
What kind of octopus dish?

There are a few recommendations on local food blogs but I would not know how reliable those are.

Actually, recent reviews of Ramiro on this board have been mixed, as the OP might know from her other thread.

Yes, the recent reviews here of Ramiro have definitely been mixed (including mine!!) and also on Hungry Onion, plus Ramiro is crustaceans only.

For octopus in Lisbon, or "Polvo assado à Lagareiro", you could make your way to Adegas das Gravatas, where the male patrons leave one of their ties to hang from the ceiling as Fodorite Niki knows, who once participated in the "Lisbon Dining Club" with former poster lobo mau. I haven't been there yet, but I have it on my list. I wish lobo mau were still posting here. Adegas Das Gravatas is super authentic.

https://www.adegadasgravatas.com/adegadasgravatas

Audrey's in Alfama