if anyone knows of a reasonably priced sanrio (or tbh any other goofy looking crt tv) please link below! i want to start gaming on one
CRTs are heavy and easily damaged so not many will ship them anywhere.
Your best bet then becomes go to every flea market, garage sale, computer fayre, car boot sale, church rummage sale, estate sale, charity shop, local electronics dump/recycler, pawn shop and such you see (maybe even ask people), local selling groups online (might involve using facebook) and borderline hoarding neighbours and relatives (those born before about the late 60s will often stash old things in sheds, cellars, warehouses and attics) and hope other gamers have not got there before you. At this point you are probably 15 years too late for the good times there, 10 at the very latest -- everybody upgrading to flatscreen, plasma and "HD" meant such places were filled with them. Still kicking myself/wishing I had the space for the litany of 720i res stuff with component in I passed up during such times.
Do also bear in mind many old consoles can be converted to VGA (original xbox being among the more notable on the easier path, N64 component for harder stuff), and while today everybody wants to get their old consoles spitting out HDMI then originally the term people used was VGA box so you can also get devices to take composite in and turn that into VGA. Also also if you find yourself with a really old one then find a VCR as well -- other than macrovision annoyances then they can turn scart (granted that is not much seen in the US), composite and such inputs into RF*. Equally if you want audio you you can often tap any onboard speakers.
*related as well if you fancied cutting some things down a bit