I've got the "OLDLEY Stainless Steel Water Bottle with Straw 1L Vaccum Insulated" from Amazon. Had it for about a year, it's great. Keeps my drink cold for ages.
I just got one of these from home bargains especially for labour I love it https://home.bargains/product/25737eca-b995-4fd2-99b8-9c07562a70aa/hydrate-30oz-tumbler-with-handle
I have one with a straw in the top with a handle on the side literally from Asda. Apparently straw bottles are a good idea
I have a stanley cup. They are a bit pricey but well worth it. Keeps ice frozen for about 10 hours+ i find x
This one for Amazon I swear by! I took on holiday with me to Turkey and the water stayed ice cold x GOPPUS 750ml/24oz Insulated Water... https://www.amazon.co.uk/dp/B0C24FC782?ref=ppx_pop_mob_ap_share
I have a chillys bottle, pricey but I think it's worth it!