From what I understand, it's okay to post multiple maps in one post as long as the artist and song are the same.
https://osu.titanic.sh/b/134396
https://osu.titanic.sh/b/118254
https://osu.titanic.sh/b/182914
https://osu.ppy.sh/beatmapsets/41998#osu/134396
https://osu.ppy.sh/beatmapsets/36618#osu/118254
https://osu.ppy.sh/beatmapsets/61350#osu/182914
Maybe you could combine a few diffs from those three sets into one full mapset, kind of like this one ? It could look like this: BASIC > quo's Normal >Lunet's Hard > MiLu's Insane > holoaz's Insane > yeahyeahyeahhh's Extreme > gowww's EXTREME