help building a pc

hi, wanting to get a new pc but not sure where to start. requirements are:

can run games like overwatch, league of legends, valorant etc (doesnt need to be super crazy fps), i dont really play AAA games so it doesnt have to be anything super high end

i've had consistent problems on my old PC with C drive storage, i originally had 70gb storage and it got full so my computer was slow, then upgraded to 110gb storage and got full again, so i would like minumum 300gb storage for C drive and ideally 2TB+ on another storage drive

budget is around $2000 AUD

please recommend! i would really appreciate any help or suggestions!