Looking for similar phone to HTC 10(had htcs for the past 6-7 years or so), any recommendations? Budget of £350(simply free)
Depends on what you prioritize in a phone.
The Honor view 10 and the Honor 8 pro are good options from Huawei in that price range. The processors in these phones are pretty fast and they have good cameras as well. However, if you are not a fan of custom android UI and prefer stock-ish android, Huawei is not for you.
In terms of phones with close to stock UI, the Sony Zperia XZ is available and fits your budget. Its a year old but still very highly equipped and holds its own against the 2018 models. The software is mostly clean and uncluttered, making it very responsive.
Nokia 8 is another good option in that price band. You get pure android, fantastic build quality and a distinctive design. The camera is average to good but everything else is top of the line.
If you like a bigger phone with stock android, I recommend another Nokia, the 7 plus which came out about a month ago. Looks gorgeous and very different to the myriad of metal+glass designs out there. The screen is
massive. It IS a big phone though, almost like a small tablet.
Last year's samsung flagship (S8, S8 plus) are available for relatively cheap if you look around. They are good value for money and there is little difference in real life user experience compared to this years flagships (S9, S9 plus). These do not have stock android though.