goa trance was the trance that began in ,um, goa in the early 90s, kinda like floaty, fast acid house.....it was this that mutated into psytrance in the mid 90s......
looking at the psy lineup there is no goa on paper.....
morning/daytime trance is the closest (although nothing like) to goa in terms of the idea behind it
check out - beatnik, fromem_ory, jon kenobi and protoculture......
however if you like a proper psychedelic workout - check out yab-yum....they are fucking awesome.....tight, groovy, very psychedelic and diamond hard........
all opinions are IMO btw
