The latest ComRes poll gives SNP 71 seats, Con 24, Lab 19, Green 11, LD 4.
Source: Ballot Box Scotland.
Note the SNP only gets 1 regional list seat (in Highlands and Islands). If:
this poll is accurate (big caveat!),
and you want to maximise the number of indy-supporting MSPs,
and you live in any region other than Highlands and Islands,
then your best bet is to vote Green.