I'm a sub-30 speedcuber, using CFOP as my main 3x3 solving method, along with 2-/ 3-look last layer (1OLL/ 2LOLL + 1LPLL = 2LLL/ 3LLL). Although I know the Petrus and Roux methods, I'm the most comfortable with CFOP.
Winter Variation (WVLS) and Vandenbergh-Harris Last Slot (VHLS) are the two last slot variations I know.
My current 3x3 average is around 28.
My current main 3x3 cube is the YJ Guanlong.
Apart from the 3x3 cube, the other puzzles that I can solve are the (2x2, 4x4, 5x5) cubes, the mirror cube, the pyraminx, the megaminx and a few more minor ones.