Follow SOP if it covers the situation, else;
Assess the situation and the likelihood of restart in the published restart envelop. All engine models are not equal. The only cert requirement is that they publish a restart envelop as certified.
Achieve that envelop ASAP but do not damage your engines by continued un
successful restart attempts outside that envelop[ (EGT exceedences). If and only if you run out of restart options in the published envelop then configure for optimum glide that has a high degree of chance of a dead engine landing