I'm not sure if we can call any project "safe" but in the case of IEO or STO chances to be scammed are definitely lower than in standard ICOs.
for now, maybe IEO and STO are safer than ICO. but in some future time I think all of these processes will be the same. because scammers will come and find ways to still be able to get money.
for now there is no ICO project recommendation.