Investment structure

Hi All

I'm in the process of raising seed funding but can't quite decide whether we should go for equity or ASA (Advance Subscription Agreement, equivalent to SAFE in the US). We are currently at the pre-launch stage and my company is based in the UK. Also I'm in the Insurtech space so we do not qualify for (S)EIS.

I would really appreciate if any one could share some of your experience with me. Thank you very much in advance for your advice.

Regards, Janthana K.