Oddly I didn't find yuri on ice that fanservice-y.
A lot of the anime for guys, as in showing lots of big boobed women/female teens are more fanservice-y than Yuri on ice. Such as High school DD, like that's a extreme but still.
A less extreme is uh this one
https://myanimelist.net/anime/28121/Dun ... u_Darou_ka it's got some fan service but not overly. At least like I could watch it and enjoy it. Unlike DD which I didn't watch much of.
As for yuri on ice, tbh the most fan service bits are Vicktor getting naked but us not seeing anything besides his butt and chest. And the cute scenes between him and yuri.
I think that swimming one, Free! would be more fan service-y. I haven't seen that one yet.
That said these are just my thoughts.