What board should i get to get cheap but the options i require with out lies about phases XD
All cheap boards lie about phases

Almost all of them are using 4 pairs of inductors and mosfets in parallel and calling it 8 phases. I mean, it IS better than straight 4 because at least you've got more mosfets to spread the load, but it's still 4 actual phases because the pairs are in sync, so you don't get any additional stability or de-rippling (if that's a term). And some manufacturers use cheap, high resistance mosfets which completely frikking negates the point because they spit out twice the heat -_-
Best resources I can find for AM4 is unfortunately for the X370 and B350 boards:
https://www.reddit.com/r/Amd/comments/630gc9/am4_motherboard_tier_list_updated_40217/ On the other hand, the X470s are basically just refreshes and it's unlikely that anyone's
dropped VRM quality vs the previous generation. Maybe pick one from there that's about your budget then have a dig into it and see if you can find better details? My best advice is research the shot out of it first. You have a working system so take your time
Off the top of my head, the Asus ROG Strix-F is middling fair, but that's £190 and you might as well stretch to an Asrock Taichi for £210 which is good (proper doubling of phases). Asus Crosshair 7 is serious overkill at £255, but is the one I'd suggest will handle any Ryzen 3000 in the future with no problems whatsoever. It might be worth the investment, imo, and it would have been my choice had I stuck with AMD.
For £160 the MSI Gaming Pro Carbon didn't get totally hated on by Buildzoid... It's not brilliant, but it's not awful either. (Yes I love that guy's channel, he is actually honest about stuff and understands how VRMs work.)
Avoid Asus TUF like the plague. It does not mean what it once did

Gigabyte has really dropped off of late, with the exception of their most expensive, they're all a bit poo, imo. And even on the best ones the m.2 is trapped behind the gpu, where it will throttle during gaming. Source; my 960 Pro throttled during gaming when trapped behind a humble 1060.