BA does something similar to LH with higher tier elites getting access to better lounges (even when flying coach) than those traveling on paid business class tickets. IIRC AA also gives EXP access to FC lounges when flying international coach, although that might be an alliance rule.

In SkyTeam, IIRC the only separate FC lounges would be AF at CDG and KE at ICN. I don't think there are any arrangements for the use of paid contract or other airline FC lounges. An unusual case would be the separate international business class check in lounge at LAX, but there I think the rule is that 360s (the unpublished invitation only revenue based tier above Diamond) can use it before international flights in coach. However, it's a small lounge without many of the usual amenities such as alcohol.

There are also some anomalies involving DL's bilateral partnerships with VS and VA. For some lounges, just Gold status isn't enough, with Plats and Diamonds getting access to better lounges.