Hi, searching for some mangas

Recently I been reading mangas on the recently uploaded page on myreadingmanga , I had some that called my atention but I can't remember their names
- there was this guy, I dont remember if it was the first chapter or not, he was in some bar or coffee shop, he was the bartender or something like that, he was caressing a cat on the counter, I dont remember a lot more (it's not that manga with a spider man that fell in love with the cat man, that one is called ''Tonde hi ni iru natsu no Neko'' by: ''fujimako'') :(
- a guy that was reborn, he was searching for a sea dragon or he was the sea dragon, he was searching for his other life lover, he was always with a boy with glasses and had sex.
- some guys that had to fight in a island, one of them had been studying outside of the island, every fighter was Male and had some very weird suits, the crotch area had the weapons, I remember one of them had a whip.
-an old scientist i think made a robot, maybe with the purpose of loving him.
None of this mangas are completed
Any help is appreciated, thanks for reading (●'◡'●)ﾉ
My English it's not very good, sorry
Have a good day and take care <3