I use an Akai Headrush e2, fantastic pedal. Goes up to 35 seconds loop time. Also does straight up delay (same time, 35 seconds) and tape echo. It has an absolutely brilliant system as well of having 4 jacks to simulate separate tape heads so you can run 4 different loops through 4 different amps at once from the one pedal.
They're relatively cheap compared to most other loopers as well. 😁
The only downside I can give you is that it isn't true bypass, but tbh I couldn't tell until the power adaptor got yanked out one day and I thought my whole rig had died.
